CVE-2026-16357: Vulnerability in Mozilla Firefox
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13.
AI Analysis
Technical Summary
CVE-2026-16357 involves incorrect boundary conditions in the Graphics component of Mozilla Firefox. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. It is classified with high impact by Mozilla and is included among multiple security fixes addressing memory safety and boundary condition issues in these Firefox releases. The vendor advisories confirm the fix and recommend upgrading to these versions. There is no CVSS score provided, and no known active exploitation has been reported.
Potential Impact
The vulnerability could lead to potential security issues related to improper boundary checks in the Graphics component, which may result in memory corruption or other unintended behavior. Mozilla classifies the impact as high. However, no known exploits in the wild have been observed. The flaw could be leveraged in attacks if left unpatched, but the exact exploitation details are not provided.
Mitigation Recommendations
A fix is available and has been incorporated in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Users and administrators should upgrade to these versions or later to remediate this vulnerability. No additional mitigation steps are specified by Mozilla beyond applying the official update.
CVE-2026-16357: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13.
Affected software
pkg:github/mozilla/firefox-esrRun 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
CVE-2026-16357 involves incorrect boundary conditions in the Graphics component of Mozilla Firefox. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. It is classified with high impact by Mozilla and is included among multiple security fixes addressing memory safety and boundary condition issues in these Firefox releases. The vendor advisories confirm the fix and recommend upgrading to these versions. There is no CVSS score provided, and no known active exploitation has been reported.
Potential Impact
The vulnerability could lead to potential security issues related to improper boundary checks in the Graphics component, which may result in memory corruption or other unintended behavior. Mozilla classifies the impact as high. However, no known exploits in the wild have been observed. The flaw could be leveraged in attacks if left unpatched, but the exact exploitation details are not provided.
Mitigation Recommendations
A fix is available and has been incorporated in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Users and administrators should upgrade to these versions or later to remediate this vulnerability. No additional mitigation steps are specified by Mozilla beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-07-20T21:56:03.705Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-68/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-69/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-70/","vendor":"Mozilla"}]
Threat ID: 6a5f6cb92a4a8d5989262432
Added to database: 07/21/2026, 12:57:29 UTC
Last enriched: 07/21/2026, 13:43:16 UTC
Last updated: 07/21/2026, 21:18:31 UTC
Views: 5
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