Out-of-bounds Write Affecting Firefox package, versions [,138.0.4)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UNMANAGED-FIREFOX-10231776
  • published23 May 2025
  • disclosed17 May 2025
  • creditUnknown

Introduced: 17 May 2025

CVE-2025-4918  (opens in a new tab)
CWE-787  (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.

CVSS Base Scores

version 4.0
version 3.1