VulnerabilityModified
CVE-2025-0241
When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash.
HIGH 7.7EPSS 0.74%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
- CVSS 3.1
- 7.7 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- mozilla/firefox · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1933023Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-01/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-02/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-04/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-05/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.