Use After Free Affecting Firefox package, versions [,135)
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-FIREFOX-8705434
- published9 Feb 2025
- disclosed4 Feb 2025
- creditNils Bars
Introduced: 4 Feb 2025
NewCVE-2025-1012 (opens in a new tab)How to fix?
Upgrade Firefox to version 135 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free due to a race condition during concurrent delazification. An attacker can execute arbitrary code or cause a denial of service by exploiting the timing discrepancy to access freed memory.