CVE-2026-8092: Vulnerability in Mozilla Firefox
Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
AI Analysis
Technical Summary
This vulnerability involves multiple memory safety bugs in Mozilla Firefox ESR 115.35.1, Firefox ESR 140.10.1, and Firefox 150.0.1. Evidence of memory corruption was observed, and it is presumed that with sufficient effort, these bugs could be exploited to achieve arbitrary code execution. Mozilla released fixes for these issues in Firefox 150.0.2, Firefox ESR 115.35.2, and Firefox ESR 140.10.2. The CVSS v3.1 base score is 8.1, indicating a high severity with network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The vendor advisories confirm the fixes and provide detailed references to the bugs and reporters.
Potential Impact
Successful exploitation of these memory safety bugs could lead to arbitrary code execution, compromising the confidentiality, integrity, and availability of the affected systems running vulnerable Firefox versions. The vulnerabilities are rated high severity with a CVSS score of 8.1. There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
Mozilla has released official fixes for these vulnerabilities in Firefox 150.0.2, Firefox ESR 115.35.2, and Firefox ESR 140.10.2. Users and administrators should update affected Firefox and Firefox ESR installations to these fixed versions or later to remediate the vulnerabilities. Patch status is confirmed by the vendor advisories. No additional mitigation steps are required beyond applying the official updates.
CVE-2026-8092: Vulnerability in Mozilla Firefox
Description
Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
CVSS v3.1
Score 8.1high
Affected software
pkg:github/mozilla/firefoxRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves multiple memory safety bugs in Mozilla Firefox ESR 115.35.1, Firefox ESR 140.10.1, and Firefox 150.0.1. Evidence of memory corruption was observed, and it is presumed that with sufficient effort, these bugs could be exploited to achieve arbitrary code execution. Mozilla released fixes for these issues in Firefox 150.0.2, Firefox ESR 115.35.2, and Firefox ESR 140.10.2. The CVSS v3.1 base score is 8.1, indicating a high severity with network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The vendor advisories confirm the fixes and provide detailed references to the bugs and reporters.
Potential Impact
Successful exploitation of these memory safety bugs could lead to arbitrary code execution, compromising the confidentiality, integrity, and availability of the affected systems running vulnerable Firefox versions. The vulnerabilities are rated high severity with a CVSS score of 8.1. There are no known exploits in the wild at the time of publication.
Mitigation Recommendations
Mozilla has released official fixes for these vulnerabilities in Firefox 150.0.2, Firefox ESR 115.35.2, and Firefox ESR 140.10.2. Users and administrators should update affected Firefox and Firefox ESR installations to these fixed versions or later to remediate the vulnerabilities. Patch status is confirmed by the vendor advisories. No additional mitigation steps are required beyond applying the official updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-05-07T12:45:06.414Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-40/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-41/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-42/","vendor":"Mozilla"}]
Threat ID: 69fc8e61cbff5d8610ef2cbf
Added to database: 05/07/2026, 13:06:41 UTC
Last enriched: 07/30/2026, 00:08:23 UTC
Last updated: 07/31/2026, 19:30:16 UTC
Views: 167
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