Vulnerability Description
Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 115.27.0 |
| Mozilla | Thunderbird | < 128.14.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1979782Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-64/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-65/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-66/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-67/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-70/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-71/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-72/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html
FAQ
What is CVE-2025-9180?
CVE-2025-9180 is a vulnerability with a CVSS score of 8.1 (HIGH). Same-origin policy bypass in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128....
How severe is CVE-2025-9180?
CVE-2025-9180 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-9180?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Thunderbird.