CVE-2025-11711

MediumCVSS 6.5/10Last modified Oct 23, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-591

Affected software

Vendor	Product	Versions
Mozilla	Firefox	—
Mozilla	Thunderbird	—

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1989978Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-81/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-82/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-83/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-84/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-85/Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00015.html
https://lists.debian.org/debian-lts-announce/2025/10/msg00031.html

Timeline

Published: Oct 14, 2025
Last modified: Oct 23, 2026
NVD status: Modified

Related CVEs from 2025

CVE-2025-117126.1A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resour CVE-2025-117138.1Insufficient escaping in the “Copy as cURL” feature could have been used to trick a user into executing unexpected code on Windows. This did CVE-2025-117148.8Memory safety bugs present in Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these b CVE-2025-117158.8Memory safety bugs present in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143. Some of these bugs showed evidence CVE-2025-117166.5Links in a sandboxed iframe could open an external app on Android without the required "allow-" permission. This vulnerability was fixed in CVE-2025-117179.1When switching between Android apps using the card carousel Firefox shows a black screen as its card image when a password-related screen wa CVE-2025-117186.5When the address bar was hidden due to scrolling on Android, a malicious page could create a fake address bar to fool the user in response t CVE-2025-117199.8Starting in Thunderbird 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free CVE-2025-11728.8A vulnerability, which was classified as critical, has been found in 1000 Projects Bookstore Management System 1.0. Affected by this issue i CVE-2025-117208.1The Firefox and Firefox Focus UI for the Android custom tab feature only showed the "site" that was loaded, not the full hostname. User supp CVE-2025-117219.8Memory safety bug present in Firefox 143 and Thunderbird 143. This bug showed evidence of memory corruption and we presume that with enough CVE-2025-117227.5The Woocommerce Category and Products Accordion Panel plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and