CVE-2025-10527

HIGH EPSS 17.1%
Published Sep 16, 20259mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Sep 16, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

CVSS Details

Base Score
7.1
Exploitability
2.8
Impact
3.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
17.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 4

VendorProductVersionRange
mozillafirefox* <140.3.0
mozillafirefox* ≤143.0
mozillathunderbird* <140.3.0
mozillathunderbird*≥141.0  –  <143.0

References 7

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1984825
    Broken Link
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-73/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-75/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-77/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-78/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.