CVE-2025-11714: Memory Safety Bugs Present
Source GCVE Database
Not known to be exploited · CVSS 8.8 High · fixed in 144 : patch affected systems soon.
Data as of 29 Oct 2026, 23:56 UTC
- Patch
- Available – fixed in 144, 140.4, 115.29
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 14 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
AI-suggested
Users and administrators should update affected products to Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird ESR 140.4, or Thunderbird 144 or later, where these memory safety bugs have been fixed. No additional mitigation is required once the update is applied.
Description
Multiple memory safety bugs were present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143, and Thunderbird 143. These bugs showed evidence of memory corruption and could potentially be exploited to execute arbitrary code. The vulnerabilities were fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird ESR 140.4, and Thunderbird 144. The CVSS score for this issue is 8.8, indicating high severity.
References
- nvd.nist.gov/vuln/detail/CVE-2025-11714 (opens in a new tab)
- bugzilla.mozilla.org/buglist.cgi?bug_id=1973699%2C1989945%2C1990970%2C1991040%2C1992113 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/10/msg00015.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/10/msg00031.html (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-81 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-82 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-83 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-84 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2025-85 (opens in a new tab)