Common Weakness Enumeration
CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10373 vulnerabilities reference this CWE, most recent first.
CVE-2026-6040 (GCVE-0-2026-6040)
Vulnerability from cvelistv5 – Published: 2026-06-15 16:21 – Updated: 2026-07-23 12:08
VLAI
EPSS
VEX
Title
Heap use-after-free in ODF number-format blank-width parsing
Summary
A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 18:14 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.libreoffice.org/about-us/security/adv… | |
| https://access.redhat.com/security/cve/CVE-2026-6040 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2488966 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| The Document Foundation | LibreOffice |
Affected:
25.8 , < < 25.8.7
(25.8 series)
Affected: 26.2 , < < 26.2.3 (26.2 series) |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
Date Public
2026-06-15 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-6040",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-15T18:14:24.996356Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-15T18:14:30.848Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "libreoffice",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "libreoffice",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "libreoffice",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "libreoffice",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
}
],
"datePublic": "2026-06-15T16:21:53.903Z",
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in LibreOffice. If a user inadvertently opens a malicious OpenDocument Format (ODF) file, an attacker could execute unauthorized code and potentially gain full control of the system."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-825",
"description": "Expired Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-23T12:08:09.144Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-6040"
},
{
"name": "RHBZ#2488966",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488966"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6040.json"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-15T18:01:31.633Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-06-15T16:21:53.903Z",
"value": "Made public."
}
],
"title": "libreoffice: LibreOffice: Heap use-after-free allows arbitrary code execution via malformed ODF number format",
"workarounds": [
{
"lang": "en",
"value": "Users should exercise caution and avoid opening untrusted OpenDocument Format (ODF) files."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "LibreOffice",
"vendor": "The Document Foundation",
"versions": [
{
"lessThan": "\u003c 25.8.7",
"status": "affected",
"version": "25.8",
"versionType": "25.8 series"
},
{
"lessThan": "\u003c 26.2.3",
"status": "affected",
"version": "26.2",
"versionType": "26.2 series"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Anthropic (automated discovery using Claude)"
},
{
"lang": "en",
"type": "analyst",
"value": "Trail of Bits (triage and validation)"
}
],
"datePublic": "2026-06-15T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.\u003c/p\u003e"
}
],
"value": "A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use."
}
],
"impacts": [
{
"capecId": "CAPEC-44",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-44 Overflow Binary Resource File"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"exploitMaturity": "PROOF_OF_CONCEPT",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-15T16:21:53.903Z",
"orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
"shortName": "Document Fdn."
},
"references": [
{
"url": "https://www.libreoffice.org/about-us/security/advisories/cve-2026-6040"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Heap use-after-free in ODF number-format blank-width parsing",
"x_generator": {
"engine": "Vulnogram 1.0.2"
}
}
},
"cveMetadata": {
"assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
"assignerShortName": "Document Fdn.",
"cveId": "CVE-2026-6040",
"datePublished": "2026-06-15T16:21:53.903Z",
"dateReserved": "2026-04-09T16:42:11.799Z",
"dateUpdated": "2026-07-23T12:08:09.144Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5947 (GCVE-0-2026-5947)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:10 – Updated: 2026-09-01 12:05
VLAI
EPSS
VEX
Title
SIG(0) validation during query flood may lead to undefined behavior
Summary
Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-20 13:39 UTC
CWE
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5947 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
| https://access.redhat.com/security/cve/CVE-2026-5947 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2479772 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:7412 | vendor-advisoryx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.20.0 , ≤ 9.20.22
(custom)
Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) Unaffected: 9.18.28 , ≤ 9.18.49 (custom) Unaffected: 9.18.28-S1 , ≤ 9.18.49-S1 (custom) cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
9.18.48-1.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-05-20 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5947",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-20T13:39:15.454199Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-20T13:39:38.654Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "bind-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "9.18.48-1.1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "bind9.16",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "bind",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "bind9.18",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "dhcp",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"datePublic": "2026-05-21T12:15:50.513Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in BIND. A remote attacker could exploit a race condition during SIG(0) signature validation of an incoming DNS message. If the \"recursive-clients\" limit is reached and the message is discarded, a use-after-free vulnerability may occur. This could lead to undefined behavior and potentially result in a denial of service."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-367",
"description": "Time-of-check Time-of-use (TOCTOU) Race Condition",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-01T12:05:00.589Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-5947"
},
{
"name": "RHBZ#2479772",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479772"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5947.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7412"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:7412: Red Hat Hardened Images"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-19T09:59:51.277Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-05-21T12:15:50.513Z",
"value": "Made public."
}
],
"title": "bind: SIG(0) validation during query flood may lead to undefined behavior",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "BIND 9",
"vendor": "ISC",
"versions": [
{
"lessThanOrEqual": "9.20.22",
"status": "affected",
"version": "9.20.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.21.21",
"status": "affected",
"version": "9.21.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.20.22-S1",
"status": "affected",
"version": "9.20.9-S1",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.49",
"status": "unaffected",
"version": "9.18.28",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.18.49-S1",
"status": "unaffected",
"version": "9.18.28-S1",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.20.22",
"versionStartIncluding": "9.20.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.21.21",
"versionStartIncluding": "9.21.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.20.22-S1",
"versionStartIncluding": "9.20.9-S1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.18.49",
"versionStartIncluding": "9.18.28",
"vulnerable": false
},
{
"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"versionEndIncluding": "9.18.49-S1",
"versionStartIncluding": "9.18.28-S1",
"vulnerable": false
}
],
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "ISC would like to thank Naoki Wakamatsu for bringing this vulnerability to our attention."
}
],
"datePublic": "2026-05-20T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the \"recursive-clients\" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message.\nThis issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.\nBIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected."
}
],
"exploits": [
{
"lang": "en",
"value": "We are not aware of any active exploits."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "The use of memory after it is freed is undefined (\"dangling pointer\"). The BIND process may abort with a segmentation violation or similar error. If memory from the discarded message has not been reused or reclaimed, the validation might proceed normally. Any kind of code execution from such an improper data read is unlikely."
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-362",
"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
"lang": "en",
"type": "CWE"
},
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-20T13:10:11.873Z",
"orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"shortName": "isc"
},
"references": [
{
"name": "CVE-2026-5947",
"tags": [
"vendor-advisory"
],
"url": "https://kb.isc.org/docs/cve-2026-5947"
},
{
"tags": [
"patch"
],
"url": "https://downloads.isc.org/isc/bind9/9.20.23"
},
{
"tags": [
"patch"
],
"url": "https://downloads.isc.org/isc/bind9/9.21.22"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.20.23, 9.21.22, or 9.20.23-S1."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "SIG(0) validation during query flood may lead to undefined behavior",
"workarounds": [
{
"lang": "en",
"value": "No workarounds known."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"assignerShortName": "isc",
"cveId": "CVE-2026-5947",
"datePublished": "2026-05-20T13:10:11.873Z",
"dateReserved": "2026-04-09T06:40:58.672Z",
"dateUpdated": "2026-09-01T12:05:00.589Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5943 (GCVE-0-2026-5943)
Vulnerability from cvelistv5 – Published: 2026-04-27 11:00 – Updated: 2026-04-28 03:55
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader AcroForm Annotation Use-After-Free Remote Code Execution Vulnerability
Summary
Document structural anomalies caused inconsistencies between page element relationships and internal index states. When scripts triggered document modifications, object reference validity was not properly maintained, leading to a crash when accessing an invalid pointer during page information queries.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-27 00:00 UTC
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.1 and earlier
Affected: Versions 14.0.3 and earlier Affected: Versions 13.2.3 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.1 and earlier
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5943",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-28T03:55:23.507Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
},
{
"status": "affected",
"version": "Versions 14.0.3 and earlier"
},
{
"status": "affected",
"version": "Versions 13.2.3 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Anonymous working with TrendAI Zero Day Initiative"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Document structural anomalies caused inconsistencies between page element relationships and internal index states. When scripts triggered document modifications, object reference validity was not properly maintained, leading to a crash when accessing an invalid pointer during page information queries."
}
],
"value": "Document structural anomalies caused inconsistencies between page element relationships and internal index states. When scripts triggered document modifications, object reference validity was not properly maintained, leading to a crash when accessing an invalid pointer during page information queries."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Potential arbitrary code execution"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use after free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T11:00:31.554Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Foxit PDF Editor/Reader AcroForm Annotation Use-After-Free Remote Code Execution Vulnerability",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-5943",
"datePublished": "2026-04-27T11:00:31.554Z",
"dateReserved": "2026-04-09T03:42:20.240Z",
"dateUpdated": "2026-04-28T03:55:23.507Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5942 (GCVE-0-2026-5942)
Vulnerability from cvelistv5 – Published: 2026-04-27 11:00 – Updated: 2026-04-27 13:43
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader AcroForm Signature Use-After-Free Vulnerability
Summary
Flaws in page lifecycle management allow document structure changes to desynchronize internal component states, causing subsequent operations to access invalidated objects and crash the program.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-27 13:38 UTC
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.1 and earlier
Affected: Versions 14.0.3 and earlier Affected: Versions 13.2.3 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.1 and earlier
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5942",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T13:38:11.039409Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T13:43:18.769Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
},
{
"status": "affected",
"version": "Versions 14.0.3 and earlier"
},
{
"status": "affected",
"version": "Versions 13.2.3 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Anonymous working with TrendAI Zero Day Initiative"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Flaws in page lifecycle management allow document structure changes to desynchronize internal component states, causing subsequent operations to access invalidated objects and crash the program."
}
],
"value": "Flaws in page lifecycle management allow document structure changes to desynchronize internal component states, causing subsequent operations to access invalidated objects and crash the program."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Potential arbitrary code execution"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use after free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T11:00:33.818Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Foxit PDF Editor/Reader AcroForm Signature Use-After-Free Vulnerability",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-5942",
"datePublished": "2026-04-27T11:00:33.818Z",
"dateReserved": "2026-04-09T03:42:17.871Z",
"dateUpdated": "2026-04-27T13:43:18.769Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5940 (GCVE-0-2026-5940)
Vulnerability from cvelistv5 – Published: 2026-04-27 11:00 – Updated: 2026-04-28 03:55
VLAI
EPSS
VEX
Title
Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability
Summary
Calling a function that triggers a UI refresh after removing comments via a script may access an invalidated object, leading to program crashes.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-27 00:00 UTC
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.1 and earlier
Affected: Versions 14.0.3 and earlier Affected: Versions 13.2.3 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.1 and earlier
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5940",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-28T03:55:22.371Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
},
{
"status": "affected",
"version": "Versions 14.0.3 and earlier"
},
{
"status": "affected",
"version": "Versions 13.2.3 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Anonymous working with TrendAI Zero Day Initiative"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Calling a function that triggers a UI refresh after removing comments via a script may access an invalidated object, leading to program crashes."
}
],
"value": "Calling a function that triggers a UI refresh after removing comments via a script may access an invalidated object, leading to program crashes."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Potential arbitrary code execution"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use after free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T11:00:36.200Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Foxit PDF Editor/Reader Annotation Use-After-Free Remote Code Execution Vulnerability",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-5940",
"datePublished": "2026-04-27T11:00:36.200Z",
"dateReserved": "2026-04-09T03:42:11.434Z",
"dateUpdated": "2026-04-28T03:55:22.371Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5939 (GCVE-0-2026-5939)
Vulnerability from cvelistv5 – Published: 2026-04-27 11:00 – Updated: 2026-04-28 12:50
VLAI
EPSS
VEX
Title
UAF in Foxit PDF Editor/Reader via XFA calculate event
Summary
A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-28 03:55 UTC
CWE
- CWE-416 - Use after free
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.1 and earlier
Affected: Versions 14.0.3 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.1 and earlier
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5939",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-28T03:55:25.421518Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-28T12:50:41.920Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
},
{
"status": "affected",
"version": "Versions 14.0.3 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2026.1 and earlier"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Haein Lee from KAIST Hacking Lab"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution."
}
],
"value": "A crafted XFA PDF can trigger a use-after-free condition during calculate event processing, causing the application to crash and resulting in an arbitrary code execution."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Potential arbitrary code execution"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use after free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T11:00:29.102Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "UAF in Foxit PDF Editor/Reader via XFA calculate event",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-5939",
"datePublished": "2026-04-27T11:00:29.102Z",
"dateReserved": "2026-04-09T03:42:09.733Z",
"dateUpdated": "2026-04-28T12:50:41.920Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5655 (GCVE-0-2026-5655)
Vulnerability from cvelistv5 – Published: 2026-04-30 05:38 – Updated: 2026-04-30 12:52
VLAI
EPSS
VEX
Title
Use After Free in Wireshark
Summary
SDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 12:52 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.wireshark.org/security/wnpa-sec-2026-… | |
| https://gitlab.com/wireshark/wireshark/-/issues/21112 | issue-trackingpermissions-required |
| https://gitlab.com/wireshark/wireshark/-/work_ite… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.5
(semver)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5655",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-30T12:52:18.578076Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-30T12:52:43.399Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21112"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wireshark",
"vendor": "Wireshark Foundation",
"versions": [
{
"lessThan": "4.6.5",
"status": "affected",
"version": "4.6.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Huang Qiangxiong"
}
],
"descriptions": [
{
"lang": "en",
"value": "SDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 allows denial of service"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416: Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-30T05:38:59.211Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-19.html"
},
{
"name": "GitLab Issue #21112",
"tags": [
"issue-tracking",
"permissions-required"
],
"url": "https://gitlab.com/wireshark/wireshark/-/issues/21112"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 4.6.5 or above"
}
],
"title": "Use After Free in Wireshark"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-5655",
"datePublished": "2026-04-30T05:38:59.211Z",
"dateReserved": "2026-04-06T06:34:01.485Z",
"dateUpdated": "2026-04-30T12:52:43.399Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5460 (GCVE-0-2026-5460)
Vulnerability from cvelistv5 – Published: 2026-04-09 23:29 – Updated: 2026-04-10 13:51
VLAI
EPSS
VEX
Title
Heap Use-After-Free in PQC Hybrid KeyShare Error Cleanup in wolfSSL TLS 1.3
Summary
A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare processing. In the error handling path of TLSX_KeyShare_ProcessPqcHybridClient() in src/tls.c, the inner function TLSX_KeyShare_ProcessPqcClient_ex() frees a KyberKey object upon encountering an error. The caller then invokes TLSX_KeyShare_FreeAll(), which attempts to call ForceZero() on the already-freed KyberKey, resulting in writes of zero bytes over freed heap memory.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 13:51 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-5460",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-10T13:51:11.637858Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-10T13:51:18.283Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "wolfSSL",
"programFiles": [
"src/tls.c"
],
"repo": "https://github.com/wolfSSL/wolfssl",
"vendor": "wolfSSL",
"versions": [
{
"lessThan": "5.9.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Calvin Young (eWalker Consulting Inc.)"
},
{
"lang": "en",
"type": "finder",
"value": "Enoch Chow (Isomorph Cyber)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA heap use-after-free exists in wolfSSL\u0027s TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare processing. In the error handling path of TLSX_KeyShare_ProcessPqcHybridClient() in src/tls.c, the inner function TLSX_KeyShare_ProcessPqcClient_ex() frees a KyberKey object upon encountering an error. The caller then invokes TLSX_KeyShare_FreeAll(), which attempts to call ForceZero() on the already-freed KyberKey, resulting in writes of zero bytes over freed heap memory.\u003c/p\u003e"
}
],
"value": "A heap use-after-free exists in wolfSSL\u0027s TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare processing. In the error handling path of TLSX_KeyShare_ProcessPqcHybridClient() in src/tls.c, the inner function TLSX_KeyShare_ProcessPqcClient_ex() frees a KyberKey object upon encountering an error. The caller then invokes TLSX_KeyShare_FreeAll(), which attempts to call ForceZero() on the already-freed KyberKey, resulting in writes of zero bytes over freed heap memory."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-09T23:29:27.577Z",
"orgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
"shortName": "wolfSSL"
},
"references": [
{
"url": "https://github.com/wolfssl/wolfssl/pull/10092"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Heap Use-After-Free in PQC Hybrid KeyShare Error Cleanup in wolfSSL TLS 1.3",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27",
"assignerShortName": "wolfSSL",
"cveId": "CVE-2026-5460",
"datePublished": "2026-04-09T23:29:27.577Z",
"dateReserved": "2026-04-02T22:57:35.093Z",
"dateUpdated": "2026-04-10T13:51:18.283Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-5398 (GCVE-0-2026-5398)
Vulnerability from cvelistv5 – Published: 2026-04-22 02:23 – Updated: 2026-04-23 03:56
VLAI
EPSS
VEX
Title
Kernel use-after-free bug in the TIOCNOTTY handler
Summary
The implementation of TIOCNOTTY failed to clear a back-pointer from the structure representing the controlling terminal to the calling process' session. If the invoking process then exits, the terminal structure may end up containing a pointer to freed memory.
A malicious process can abuse the dangling pointer to grant itself root privileges.
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-22 00:00 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-04-21 18:00
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5398",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-22T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-23T03:56:10.203Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"modules": [
"tty"
],
"product": "FreeBSD",
"vendor": "FreeBSD",
"versions": [
{
"lessThan": "p6",
"status": "affected",
"version": "15.0-RELEASE",
"versionType": "release"
},
{
"lessThan": "p2",
"status": "affected",
"version": "14.4-RELEASE",
"versionType": "release"
},
{
"lessThan": "p11",
"status": "affected",
"version": "14.3-RELEASE",
"versionType": "release"
},
{
"lessThan": "p12",
"status": "affected",
"version": "13.5-RELEASE",
"versionType": "release"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Nicholas Carlini using Claude, Anthropic"
}
],
"datePublic": "2026-04-21T18:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "The implementation of TIOCNOTTY failed to clear a back-pointer from the structure representing the controlling terminal to the calling process\u0027 session. If the invoking process then exits, the terminal structure may end up containing a pointer to freed memory.\n\nA malicious process can abuse the dangling pointer to grant itself root privileges."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416: Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-22T02:23:56.767Z",
"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
"shortName": "freebsd"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:10.tty.asc"
}
],
"title": "Kernel use-after-free bug in the TIOCNOTTY handler"
}
},
"cveMetadata": {
"assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
"assignerShortName": "freebsd",
"cveId": "CVE-2026-5398",
"datePublished": "2026-04-22T02:23:56.767Z",
"dateReserved": "2026-04-02T01:48:17.131Z",
"dateUpdated": "2026-04-23T03:56:10.203Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4752 (GCVE-0-2026-4752)
Vulnerability from cvelistv5 – Published: 2026-03-24 05:40 – Updated: 2026-03-24 14:28
VLAI
EPSS
VEX
Title
Use After Free in No-Chicken Echo-Mate
Summary
Use After Free vulnerability in No-Chicken Echo-Mate.This issue affects Echo-Mate: before V250329.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 14:28 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/No-Chicken/Echo-Mate/pull/5 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| No-Chicken | Echo-Mate |
Affected:
0 , < V250329
(git)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-4752",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-24T14:28:15.802940Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T14:28:22.730Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://github.com/No-Chicken/Echo-Mate",
"defaultStatus": "affected",
"product": "Echo-Mate",
"vendor": "No-Chicken",
"versions": [
{
"lessThan": "V250329",
"status": "affected",
"version": "0",
"versionType": "git"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "TITAN Team (titancaproject@gmail.com)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use After Free vulnerability in No-Chicken Echo-Mate.\u003cp\u003eThis issue affects Echo-Mate: before V250329.\u003c/p\u003e"
}
],
"value": "Use After Free vulnerability in No-Chicken Echo-Mate.This issue affects Echo-Mate: before V250329."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-24T05:40:01.007Z",
"orgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
"shortName": "GovTech CSG"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/No-Chicken/Echo-Mate/pull/5"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Use After Free in No-Chicken Echo-Mate",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
"assignerShortName": "GovTech CSG",
"cveId": "CVE-2026-4752",
"datePublished": "2026-03-24T05:40:01.007Z",
"dateReserved": "2026-03-24T05:38:57.073Z",
"dateUpdated": "2026-03-24T14:28:22.730Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.