CVE-2025-10529

Description

Same-origin policy bypass in the Layout component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

References

https://www.mozilla.org/security/advisories/mfsa2025-78/

https://www.mozilla.org/security/advisories/mfsa2025-77/

https://www.mozilla.org/security/advisories/mfsa2025-75/

https://www.mozilla.org/security/advisories/mfsa2025-73/

https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html

https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-29560

https://bugzilla.mozilla.org/show_bug.cgi?id=1970490

Details

Source: Mitre, NVD

Named Vulnerability: GHSA-9qv5-m6vr-vh73

Risk Information

CVSS v2

CVSS v3

EPSS