CVE-2025-13027

HIGH EPSS 20.7%
Published Nov 11, 20257mo ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
High
Find Similar
Published Nov 11, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

Description

Memory safety bugs present in Firefox 144 and Thunderbird 144. 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 145 and Thunderbird 145.

CVSS Details

Base Score
8.1
Exploitability
2.2
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
20.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety

Affected Products 1

VendorProductVersionRange
mozillafirefox* <145.0

References 3

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/buglist.cgi?bug_id=1987237%2C1990079%2C1991715%2C1994994
    Broken Link
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-87/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-90/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.