CVE-2026-0885

MEDIUM EPSS 28.0%
Published Jan 13, 20265mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jan 13, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

Description

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

CVSS Details

Base Score
6.5
Exploitability
3.9
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
28.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 4

VendorProductVersionRange
mozillafirefox* <140.7.0
mozillafirefox* <147.0
mozillathunderbird* <140.7.0
mozillathunderbird* <147.0

References 5

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=2003607
    Permissions Required
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-01/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-03/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-04/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-05/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.