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CERTFR-2026-AVI-0480
Vulnerability from certfr_avis - Published: 2026-04-22 - Updated: 2026-04-22
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.10 | ||
| Mozilla | Firefox | Firefox versions antérieures à 150 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.35 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 150 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.10 |
References
| Title | Publication Time | Tags | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.10",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 150",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.35",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 150",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.10",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-6772",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6772"
},
{
"name": "CVE-2026-6747",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6747"
},
{
"name": "CVE-2026-6782",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6782"
},
{
"name": "CVE-2026-6786",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6786"
},
{
"name": "CVE-2026-6750",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6750"
},
{
"name": "CVE-2026-6757",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6757"
},
{
"name": "CVE-2026-6768",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6768"
},
{
"name": "CVE-2026-6746",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6746"
},
{
"name": "CVE-2026-6761",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6761"
},
{
"name": "CVE-2026-6762",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6762"
},
{
"name": "CVE-2026-6769",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6769"
},
{
"name": "CVE-2026-6751",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6751"
},
{
"name": "CVE-2026-6780",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6780"
},
{
"name": "CVE-2026-6765",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6765"
},
{
"name": "CVE-2026-2781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2781"
},
{
"name": "CVE-2026-6773",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6773"
},
{
"name": "CVE-2026-6754",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6754"
},
{
"name": "CVE-2026-6781",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6781"
},
{
"name": "CVE-2026-6756",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6756"
},
{
"name": "CVE-2026-6758",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6758"
},
{
"name": "CVE-2026-6785",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6785"
},
{
"name": "CVE-2026-6783",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6783"
},
{
"name": "CVE-2026-6760",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6760"
},
{
"name": "CVE-2026-6759",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6759"
},
{
"name": "CVE-2026-6774",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6774"
},
{
"name": "CVE-2026-6779",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6779"
},
{
"name": "CVE-2026-6777",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6777"
},
{
"name": "CVE-2026-6748",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6748"
},
{
"name": "CVE-2026-6778",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6778"
},
{
"name": "CVE-2026-6752",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6752"
},
{
"name": "CVE-2026-6767",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6767"
},
{
"name": "CVE-2026-6775",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6775"
},
{
"name": "CVE-2026-6749",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6749"
},
{
"name": "CVE-2026-6771",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6771"
},
{
"name": "CVE-2026-6753",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6753"
},
{
"name": "CVE-2026-6764",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6764"
},
{
"name": "CVE-2026-6763",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6763"
},
{
"name": "CVE-2026-6776",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6776"
},
{
"name": "CVE-2026-6766",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6766"
},
{
"name": "CVE-2026-6770",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6770"
},
{
"name": "CVE-2026-6784",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6784"
},
{
"name": "CVE-2026-6755",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6755"
}
],
"initial_release_date": "2026-04-22T00:00:00",
"last_revision_date": "2026-04-22T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0480",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-04-22T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-32",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-32/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-34",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-34/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-33",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-33/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-31",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-31/"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-30",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-30/"
}
]
}
CVE-2026-6765 (GCVE-0-2026-6765)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:40 – Updated: 2026-05-27 17:10
VLAI
EPSS
Title
Information disclosure in the Form Autofill component
Summary
Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-359 - Exposure of Private Personal Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
ABDULAZIZ ALASAIQAH
{
"containers": {
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6765",
"options": [
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{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-27T17:10:32.558695Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-359",
"description": "CWE-359 Exposure of Private Personal Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-27T17:10:37.958Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.10",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "150",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.10",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "150",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "ABDULAZIZ ALASAIQAH"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."
}
],
"value": "Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-21T23:34:58.377Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2022419"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-30/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-32/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-33/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-34/"
}
],
"title": "Information disclosure in the Form Autofill component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-6765",
"datePublished": "2026-04-21T12:40:58.955Z",
"dateReserved": "2026-04-21T12:40:58.662Z",
"dateUpdated": "2026-05-27T17:10:37.958Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6766 (GCVE-0-2026-6766)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:40 – Updated: 2026-05-26 18:39
VLAI
EPSS
Title
Incorrect boundary conditions in the Libraries component in NSS
Summary
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
Haruto Kimura
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6766",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-21T16:37:26.876838Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
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"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-26T18:39:03.263Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.10",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "150",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.10",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "150",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Haruto Kimura"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."
}
],
"value": "Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-21T23:34:59.578Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2023207"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-30/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-32/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-33/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-34/"
}
],
"title": "Incorrect boundary conditions in the Libraries component in NSS"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-6766",
"datePublished": "2026-04-21T12:40:59.634Z",
"dateReserved": "2026-04-21T12:40:59.297Z",
"dateUpdated": "2026-05-26T18:39:03.263Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-6767 (GCVE-0-2026-6767)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-27 17:09
VLAI
EPSS
Title
Other issue in the Libraries component in NSS
Summary
Other issue in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.35 , ≤ 115.*
(rpm)
Unaffected: 140.10 , ≤ 140.* (rpm) Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
Haruto Kimura
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-6767",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
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CVE-2026-6768 (GCVE-0-2026-6768)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-27 17:09
VLAI
EPSS
Title
Mitigation bypass in the Networking: Cookies component
Summary
Mitigation bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
150 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
150 , ≤ *
(rpm)
|
Credits
Satoki Tsuji
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CVE-2026-6769 (GCVE-0-2026-6769)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-26 17:52
VLAI
EPSS
Title
Privilege escalation in the Debugger component
Summary
Privilege escalation in the Debugger component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
Tomoya Nakanishi
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CVE-2026-6770 (GCVE-0-2026-6770)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-27 17:05
VLAI
EPSS
Title
Other issue in the Storage: IndexedDB component
Summary
Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
Dai
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CVE-2026-6771 (GCVE-0-2026-6771)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-27 16:51
VLAI
EPSS
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
Rayhan Hanaputra
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CVE-2026-6772 (GCVE-0-2026-6772)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-26 18:14
VLAI
EPSS
Title
Incorrect boundary conditions in the Libraries component in NSS
Summary
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.35 , ≤ 115.*
(rpm)
Unaffected: 140.10 , ≤ 140.* (rpm) Unaffected: 150 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.10 , ≤ 140.*
(rpm)
Unaffected: 150 , ≤ * (rpm) |
Credits
sseehra
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CVE-2026-6773 (GCVE-0-2026-6773)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-27 16:59
VLAI
EPSS
Title
Denial-of-service due to integer overflow in the Graphics: WebGPU component
Summary
Denial-of-service due to integer overflow in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
150 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
150 , ≤ *
(rpm)
|
Credits
Richard Belisle
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CVE-2026-6774 (GCVE-0-2026-6774)
Vulnerability from cvelistv5 – Published: 2026-04-21 12:41 – Updated: 2026-05-27 17:10
VLAI
EPSS
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
150 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
150 , ≤ *
(rpm)
|
Credits
lebr0nli
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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