Common Weakness Enumeration
CWE-191
AllowedInteger Underflow (Wrap or Wraparound)
Abstraction: Base · Status: Draft
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
728 vulnerabilities reference this CWE, most recent first.
CVE-2026-26204 (GCVE-0-2026-26204)
Vulnerability from cvelistv5 – Published: 2026-04-29 17:43 – Updated: 2026-04-30 12:48
VLAI
EPSS
VEX
Title
Wazuh: Heap-based NULL WRITE Buffer Underflow in GetAlertData
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 1.0.0 to before version 4.14.4, a heap-based out-of-bounds WRITE occurs in GetAlertData, resulting in writing a NULL byte exactly 1 byte before the start of the buffer allocated by strdup. Due to unsigned integer underflow and pointer arithmetic wrapping, the write lands at offset -1 from the buffer, corrupting heap metadata. A malicious actor can potentially leverage this issue through a compromised agent to cause denial of service or heap corruption by injecting a specially crafted alert into the alerts log file monitored by wazuh-logcollector. This issue has been patched in version 4.14.4.
Severity
4.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 12:48 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/wazuh/wazuh/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/wazuh/wazuh/releases/tag/v4.14.4 | x_refsource_MISC |
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CVE-2026-25772 (GCVE-0-2026-25772)
Vulnerability from cvelistv5 – Published: 2026-03-17 18:11 – Updated: 2026-03-17 18:55
VLAI
EPSS
VEX
Title
Wazuh Database Synchronization Vulnerable to Stack-based Buffer Overflow via snprintf Integer Underflow
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.14.3, a stack-based buffer overflow vulnerability exists in the Wazuh Database synchronization module (`wdb_delta_event.c`). The SQL query construction logic allows for an integer underflow when calculating the remaining buffer size. This occurs because the code incorrectly aggregates the return value of `snprintf`. If a specific database synchronization payload exceeds the size of the query buffer (2048 bytes), the size calculation wraps around to a massive integer, effectively removing bounds checking for subsequent writes. This allows an attacker to corrupt the stack, leading to a Denial of Service (DoS) or potentially RCE. Version 4.14.3 fixes the issue.
Severity
4.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-17 18:55 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wazuh/wazuh/security/advisorie… | x_refsource_CONFIRM |
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CVE-2026-25532 (GCVE-0-2026-25532)
Vulnerability from cvelistv5 – Published: 2026-02-04 17:58 – Updated: 2026-02-04 19:24
VLAI
EPSS
VEX
Title
ESF-IDF is Vulnerable to WPS Enrollee Fragment Integer Underflow
Summary
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a vulnerability exists in the WPS (Wi-Fi Protected Setup) Enrollee implementation where malformed EAP-WSC packets with truncated payloads can cause integer underflow during fragment length calculation. When processing EAP-Expanded (WSC) messages, the code computes frag_len by subtracting header sizes from the total packet length. If an attacker sends a packet where the EAP Length field covers only the header and flags but omits the expected payload (such as the 2-byte Message Length field when WPS_MSG_FLAG_LEN is set), frag_len becomes negative. This negative value is then implicitly cast to size_t when passed to wpabuf_put_data(), resulting in a very large unsigned value. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 19:24 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/espressif/esp-idf/security/adv… | x_refsource_CONFIRM |
| https://github.com/espressif/esp-idf/commit/60f99… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/6f676… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/73a58… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/b209f… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/b88be… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/cad36… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/de288… | x_refsource_MISC |
Impacted products
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CVE-2026-25104 (GCVE-0-2026-25104)
Vulnerability from cvelistv5 – Published: 2026-05-26 08:41 – Updated: 2026-05-26 12:27
VLAI
EPSS
VEX
Summary
MediaArea MediaInfoLib LXF parsing heap-based buffer overflow vulnerability
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 11:57 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaArea | MediaInfoLib |
Affected:
26.01
|
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CVE-2026-25075 (GCVE-0-2026-25075)
Vulnerability from cvelistv5 – Published: 2026-03-23 18:33 – Updated: 2026-07-14 15:53
VLAI
EPSS
VEX
Title
strongSwan 4.5.0 < 6.0.5 EAP-TTLS AVP Parsing Integer Underflow
Summary
strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 14:29 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://www.strongswan.org/blog/2026/03/23/strong… | vendor-advisoryexploit |
| https://www.strongswan.org/blog/2026/03/23/strong… | release-notes |
| https://y637f9qq2x.com/posts/cve-2026-25075/ | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/strongswan-e… | third-party-advisory |
| https://lists.debian.org/debian-lts-announce/2026… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strongSwan | strongSwan |
Affected:
4.5.0 , < 6.0.5
(semver)
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* |
Date Public
2026-03-23 00:00
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CVE-2026-24077 (GCVE-0-2026-24077)
Vulnerability from cvelistv5 – Published: 2026-08-04 15:07 – Updated: 2026-08-04 16:04
VLAI
EPSS
VEX
Title
Integer Underflow (Wrap or Wraparound) in WLAN Host
Summary
Information Disclosure when processing wireless network channel switch information with improperly formatted length fields.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 16:03 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
AQT1000
Affected: AR8035 Affected: CSRA6620 Affected: CSRA6640 Affected: FastConnect 6200 Affected: FastConnect 6700 Affected: FastConnect 6800 Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: Flight RB5 5G Platform Affected: FWA Gen 3 Ultra Platform Affected: G1 Gen 1 Affected: G2 Gen 1 Affected: Milos Affected: Netrani Affected: Orne Affected: Palawan25 Affected: QCA6391 Affected: QCA6420 Affected: QCA6430 Affected: QCA6574 Affected: QCA6574A Affected: QCA6574AU Affected: QCA6595AU Affected: QCA6696 Affected: QCA6777AQ Affected: QCA6787AQ Affected: QCA6797AQ Affected: QCA8081 Affected: QCA8337 Affected: QCC710 Affected: QCM2290 Affected: QCM4325 Affected: QCM4490 Affected: QCM5430 Affected: QCM6490 Affected: QCN6224 Affected: QCN6274 Affected: QCN9011 Affected: QCN9012 Affected: QCS2290 Affected: QCS4290 Affected: QCS4490 Affected: QFW7114 Affected: QFW7124 Affected: QMP1000 Affected: QRB5165M Affected: QRB5165N Affected: Qualcomm Video Collaboration VC3 Platform Affected: Qualcomm Video Collaboration VC5 Platform Affected: Robotics RB2 Platform Affected: Robotics RB5 Platform Affected: SA6155P Affected: SA8155 Affected: SA8155P Affected: SA8195P Affected: SD 8 Gen1 5G Affected: SD662 Affected: SD865 5G Affected: SM6225P Affected: SM6650P Affected: SM7325P Affected: SM7435 Affected: SM7635P Affected: SM7675 Affected: SM7675P Affected: SM8475P Affected: SM8635 Affected: SM8635P Affected: SM8650Q Affected: SM8750P Affected: Snapdragon 4 Gen 1 Mobile Platform Affected: Snapdragon 4 Gen 2 Mobile Platform Affected: Snapdragon 460 Mobile Platform Affected: Snapdragon 480 5G Mobile Platform Affected: Snapdragon 480+ 5G Mobile Platform Affected: Snapdragon 6 Gen 1 Mobile Platform Affected: Snapdragon 6 Gen 3 Mobile Platform Affected: Snapdragon 6 Gen 4 Mobile Platform Affected: Snapdragon 662 Mobile Platform Affected: Snapdragon 680 4G Mobile Platform Affected: Snapdragon 685 4G Mobile Platform Affected: Snapdragon 690 5G Mobile Platform Affected: Snapdragon 695 5G Mobile Platform Affected: Snapdragon 7 Gen 1 Mobile Platform Affected: Snapdragon 7+ Gen 2 Mobile Platform Affected: Snapdragon 778G 5G Mobile Platform Affected: Snapdragon 778G+ 5G Mobile Platform Affected: Snapdragon 782G Mobile Platform Affected: Snapdragon 7c+ Gen 3 Compute Affected: Snapdragon 7s Gen 3 Mobile Platform Affected: Snapdragon 8 Elite Affected: Snapdragon 8 Gen 1 Mobile Platform Affected: Snapdragon 8 Gen 3 Mobile Platform Affected: Snapdragon 8+ Gen 1 Mobile Platform Affected: Snapdragon 865 5G Mobile Platform Affected: Snapdragon 865+ 5G Mobile Platform Affected: Snapdragon 870 5G Mobile Platform Affected: Snapdragon 888 5G Mobile Platform Affected: Snapdragon 888+ 5G Mobile Platform Affected: Snapdragon 8c Compute Platform "Poipu Lite" Affected: Snapdragon 8c Compute Platform (SC8180XP-AD) "Poipu Lite" Affected: Snapdragon 8cx Compute Platform Affected: Snapdragon 8cx Compute Platform "Poipu Pro" Affected: Snapdragon 8cx Gen 2 5G Compute Platform Affected: Snapdragon 8cx Gen 2 5G Compute Platform "Poipu Pro" Affected: Snapdragon 8cx Gen 3 Compute Platform Affected: Snapdragon W5+ Gen 1 Wearable Platform Affected: Snapdragon X53 5G Modem-RF System Affected: Snapdragon X55 5G Modem-RF System Affected: Snapdragon X72 5G Modem-RF System Affected: Snapdragon X75 5G Modem-RF System Affected: Snapdragon XR2 5G Platform Affected: Snapdragon XR2+ Gen 1 Platform Affected: SW5100 Affected: SW5100P Affected: WCD9335 Affected: WCD9340 Affected: WCD9341 Affected: WCD9370 Affected: WCD9375 Affected: WCD9378 Affected: WCD9380 Affected: WCD9385 Affected: WCD9390 Affected: WCD9395 Affected: WCN3910 Affected: WCN3950 Affected: WCN3980 Affected: WCN3988 Affected: WCN6650 Affected: WCN6755 Affected: WCN7860 Affected: WCN7861 Affected: WCN7880 Affected: WCN7881 Affected: WSA8810 Affected: WSA8815 Affected: WSA8830 Affected: WSA8832 Affected: WSA8835 Affected: WSA8840 Affected: WSA8845 Affected: WSA8845H |
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},
{
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{
"status": "affected",
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},
{
"status": "affected",
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},
{
"status": "affected",
"version": "QCS4490"
},
{
"status": "affected",
"version": "QFW7114"
},
{
"status": "affected",
"version": "QFW7124"
},
{
"status": "affected",
"version": "QMP1000"
},
{
"status": "affected",
"version": "QRB5165M"
},
{
"status": "affected",
"version": "QRB5165N"
},
{
"status": "affected",
"version": "Qualcomm Video Collaboration VC3 Platform"
},
{
"status": "affected",
"version": "Qualcomm Video Collaboration VC5 Platform"
},
{
"status": "affected",
"version": "Robotics RB2 Platform"
},
{
"status": "affected",
"version": "Robotics RB5 Platform"
},
{
"status": "affected",
"version": "SA6155P"
},
{
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},
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},
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},
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"status": "affected",
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},
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},
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"status": "affected",
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},
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"status": "affected",
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},
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"version": "SM8650Q"
},
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"status": "affected",
"version": "SM8750P"
},
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"status": "affected",
"version": "Snapdragon 4 Gen 1 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 4 Gen 2 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 460 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 480 5G Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 480+ 5G Mobile Platform"
},
{
"status": "affected",
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},
{
"status": "affected",
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},
{
"status": "affected",
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},
{
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},
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},
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"status": "affected",
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},
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"status": "affected",
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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"status": "affected",
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},
{
"status": "affected",
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},
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},
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},
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},
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"status": "affected",
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},
{
"status": "affected",
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},
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},
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},
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},
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"version": "Snapdragon 8cx Compute Platform"
},
{
"status": "affected",
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},
{
"status": "affected",
"version": "Snapdragon 8cx Gen 2 5G Compute Platform"
},
{
"status": "affected",
"version": "Snapdragon 8cx Gen 2 5G Compute Platform \"Poipu Pro\""
},
{
"status": "affected",
"version": "Snapdragon 8cx Gen 3 Compute Platform"
},
{
"status": "affected",
"version": "Snapdragon W5+ Gen 1 Wearable Platform"
},
{
"status": "affected",
"version": "Snapdragon X53 5G Modem-RF System"
},
{
"status": "affected",
"version": "Snapdragon X55 5G Modem-RF System"
},
{
"status": "affected",
"version": "Snapdragon X72 5G Modem-RF System"
},
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},
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CVE-2026-23951 (GCVE-0-2026-23951)
Vulnerability from cvelistv5 – Published: 2026-01-22 00:17 – Updated: 2026-01-22 21:44
VLAI
EPSS
VEX
Title
SumatraPDF's Integer Underflow in PalmDbReader Leads to Crash
Summary
SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting in an out-of-bounds heap read that crashes the app. There are no published fixes at the time of publication.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-22 21:44 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sumatrapdfreader/sumatrapdf/se… | x_refsource_CONFIRM |
| https://github.com/sumatrapdfreader/sumatrapdf/bl… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sumatrapdfreader | sumatrapdf |
Affected:
<= 3.5.2rel
|
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CVE-2026-23748 (GCVE-0-2026-23748)
Vulnerability from cvelistv5 – Published: 2026-02-26 17:31 – Updated: 2026-07-14 15:53
VLAI
EPSS
VEX
Title
Golioth Firmware SDK < 0.22.0 LightDB State Out-of-Bounds Read
Summary
Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit d7f55b38, contain an out-of-bounds read in LightDB State string parsing. When processing a string payload, a payload_size value less than 2 can cause a size_t underflow when computing the number of bytes to copy (nbytes). The subsequent memcpy() reads past the end of the network buffer, which can crash the device. The condition is reachable from on_payload, and golioth_payload_is_null() does not block payload_size==1. A malicious server or MITM can trigger a denial of service.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-27 16:06 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://secmate.dev/disclosures/SECMATE-2025-0016 | technical-description |
| https://blog.secmate.dev/posts/golioth-vulnerabil… | technical-descriptionexploit |
| https://github.com/golioth/golioth-firmware-sdk/r… | release-notes |
| https://github.com/golioth/golioth-firmware-sdk/c… | patch |
| https://www.vulncheck.com/advisories/golioth-firm… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Golioth | Firmware SDK |
Affected:
0.10.0 , < 0.22.0
(semver)
Unaffected: d7f55b380d8be8b29bd101ce06e421af2e88c12b (git) |
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CVE-2026-22185 (GCVE-0-2026-22185)
Vulnerability from cvelistv5 – Published: 2026-01-07 20:26 – Updated: 2026-05-25 23:41
VLAI
EPSS
VEX
Title
OpenLDAP LMDB mdb_load Heap Buffer Underflow in readline()
Summary
OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. When processing malformed input containing an embedded NUL byte, an unsigned offset calculation can underflow and cause an out-of-bounds read of one byte before the allocated heap buffer. This can cause mdb_load to crash, leading to a limited denial-of-service condition.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-07 21:25 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://seclists.org/fulldisclosure/2026/Jan/5 | technical-descriptionexploit |
| https://seclists.org/fulldisclosure/2026/Jan/8 | technical-descriptionexploit |
| https://www.openldap.org/ | product |
| https://www.vulncheck.com/advisories/openldap-lmd… | third-party-advisory |
| https://bugs.openldap.org/show_bug.cgi?id=10421 | issue-trackingpatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenLDAP Foundation | OpenLDAP |
Affected:
0.9.14 , < 0.9.34
(semver)
cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:* |
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"datePublished": "2026-01-07T20:26:30.054Z",
"dateReserved": "2026-01-06T16:47:17.182Z",
"dateUpdated": "2026-05-25T23:41:35.137Z",
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CVE-2026-21489 (GCVE-0-2026-21489)
Vulnerability from cvelistv5 – Published: 2026-01-06 13:57 – Updated: 2026-01-06 14:10
VLAI
EPSS
VEX
Title
iccDEV has Out-of-bounds Read and Integer Underflow (Wrap or Wraparound)
Summary
iccDEV provides a set of libraries and tools for working with ICC color management profiles. Versions 2.3.1.1 and below have Out-of-bounds Read and Integer Underflow (Wrap or Wraparound) vulnerabilities in its CIccCalculatorFunc::SequenceNeedTempReset function. This issue is fixed in version 2.3.1.2.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-06 14:10 UTC
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/InternationalColorConsortium/i… | x_refsource_CONFIRM |
| https://github.com/InternationalColorConsortium/i… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| InternationalColorConsortium | iccDEV |
Affected:
< 2.3.1.2
|
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.