CVE-2025-11711

Description

There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

Affected Platforms

Weakness Type

CWE-591

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1989978
• https://www.mozilla.org/security/advisories/mfsa2025-81/
• https://www.mozilla.org/security/advisories/mfsa2025-82/
• https://www.mozilla.org/security/advisories/mfsa2025-83/
• https://www.mozilla.org/security/advisories/mfsa2025-84/
• https://www.mozilla.org/security/advisories/mfsa2025-85/