CVE-2025-11714HIGH 8.8EPSS p22.0%

CVE-2025-11714CVE-2025-11714

Description

Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. 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 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.31% probability of exploitation · percentile 22.0% · 2026-06-18T12:00:27Z
Published2025-10-14
Last modified2026-04-13

Underlying weaknesses· 3

CWE-119CWE-125CWE-787

References

  1. https://bugzilla.mozilla.org/buglist.cgi?bug_id=1973699%2C1989945%2C1990970%2C1991040%2C1992113
  2. https://www.mozilla.org/security/advisories/mfsa2025-81/
  3. https://www.mozilla.org/security/advisories/mfsa2025-82/
  4. https://www.mozilla.org/security/advisories/mfsa2025-83/
  5. https://www.mozilla.org/security/advisories/mfsa2025-84/
  6. https://www.mozilla.org/security/advisories/mfsa2025-85/
  7. https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html
  8. https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html

3

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessOut-of-bounds Readcwe-1250%live
WeaknessOut-of-bounds Writecwe-7870%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.