CVE-2025-11714CWE-119CWE-125CWE-787

CVE-2025-11714

High · published October 14, 2025

CVSS v3.1
8.8
EPSS
0%
Percentile
25.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00335 · 25.7th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-125 · Out-of-bounds Read; CWE-787 · Out-of-bounds Write
Published
2025-10-14T17:15Z
Affected products (5)
ProductVersionsFixed in
mozilla/firefox< 115.29.0115.29.0
mozilla/firefox< 144.0144.0
mozilla/firefox≥ 116.0, < 140.4.0140.4.0
mozilla/thunderbird< 140.4.0140.4.0
mozilla/thunderbird≥ 141.0, < 144.0144.0
References (8)
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1973699%2C1989945%2C1990970%2C1991040%2C1992113 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-81/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-82/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-83/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-84/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-85/ · [email protected]https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 14 OCT 12:27Z
    Memory safety bugs fixed in Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird ESR 140.4, Firefox 144 and Thunderbird 144
    cvelistv5