Vulnerability Description
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.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 115.28.0 |
| Mozilla | Thunderbird | < 140.3.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1980788Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-73/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-74/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-75/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-77/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-78/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html
FAQ
What is CVE-2025-10533?
CVE-2025-10533 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.
How severe is CVE-2025-10533?
CVE-2025-10533 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-10533?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Thunderbird.