CVE-2025-11711 - CVE House
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Status published Unknown CVE-2025-11711

Some non-writable Object properties could be modified

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • EntryHi

References

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Affected Vendor

Affected Software

Firefox, Thunderbird
Vulnerable Versions:
115.29, 140.4, 144

Timeline

Official Publish: October 14th, 2025
Last Modified: April 13th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.