CVE-2025-10533
HIGH severity · CVSS 8.8 · Integer overflow
8.8CVSS HIGH
Summary
Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.mozilla.org/security/advisories/mfsa2025-73/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-74/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-75/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-77/Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-78/Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1980788
- https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html