CVE Catalog

CVE-2025-11711

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

13th percentile - higher than 13% of all known CVEs

Summary

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.

Risk Assessment

This may lead to unexpected application behavior or bypass of security mechanisms in the browser and mail client.

Recommendation

Update Firefox and Thunderbird to the specified fixed versions.

Other vulnerabilities in Firefox / Thunderbird

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS