Out-of-bounds Write Affecting Firefox-ESR package, versions [,140.8.0)
Threat Intelligence
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-FIREFOXESR-15345285
- published25 Feb 2026
- disclosed24 Feb 2026
- creditOlli Pettay, Ryan Hunt, Andrew McCreight, Maurice Dauer
Introduced: 24 Feb 2026
CVE-2026-2792 (opens in a new tab)How to fix?
Upgrade Firefox-ESR to version 140.8.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write due to improper memory management. An attacker can execute arbitrary code or cause a crash by triggering memory corruption through crafted web content.