Off-by-one Error Affecting Firefox-ESR package, versions [,140.3)
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-12786429
- published17 Sept 2025
- disclosed16 Sept 2025
- creditUnknown
Introduced: 16 Sep 2025
NewCVE-2025-10532 (opens in a new tab)How to fix?
Upgrade Firefox-ESR to version 140.3 or higher.
Overview
Affected versions of this package are vulnerable to Off-by-one Error via the processing of web content. An attacker can execute arbitrary code or cause a denial of service by enticing a user to visit a specially crafted web page.