CVE-2025-1931

HIGH EPSS 38.9%
Published Mar 4, 20251y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 4, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
38.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 5

VendorProductVersionRange
mozillafirefox* <115.21.0
mozillafirefox* <136.0
mozillafirefox*≥116.0  –  <128.8.0
mozillathunderbird* <128.8.0
mozillathunderbird*≥129.0  –  <136.0

References 7

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1944126
    Issue Tracking
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-14/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-15/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-16/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-17/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-18/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.