Out-of-bounds Write Affecting Firefox package, versions [,138.0.4)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-10231776
- published23 May 2025
- disclosed17 May 2025
- creditUnknown
Introduced: 17 May 2025
CVE-2025-4918 (opens in a new tab)How to fix?
Upgrade Firefox to version 138.0.4 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write via the resolution of JavaScript Promise objects. An attacker can manipulate memory and potentially lead to code execution or crash the application by triggering an out-of-bounds read or write.