CVE-2025-1934 - CVE House
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Status published Unknown CVE-2025-1934

Unexpected GC during RegExp bailout processing

Vulnerability Description

It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

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:

  • Nils Bars

References

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Affected Vendor

Affected Software

Firefox, Thunderbird
Vulnerable Versions:
128.8, 136

Timeline

Official Publish: March 4th, 2025
Last Modified: June 4th, 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.