CVE-2025-4918

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-4918
An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox < 138.0.4, Firefox ESR < 128.10.1, and Firefox ESR < 115.23.1.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1966612
https://www.mozilla.org/security/advisories/mfsa2025-36/
https://www.mozilla.org/security/advisories/mfsa2025-37/
https://www.mozilla.org/security/advisories/mfsa2025-38/
https://www.vicarius.io/vsociety/posts/cve-2025-4918-detect-firefox-out-of-bounds-write
https://www.vicarius.io/vsociety/posts/cve-2025-4918-mitigate-firefox-out-of-bounds-write
Configurations

No configuration.

History

21 May 2025, 16:15

Type Values Removed Values Added
References
  • () https://www.vicarius.io/vsociety/posts/cve-2025-4918-detect-firefox-out-of-bounds-write -
  • () https://www.vicarius.io/vsociety/posts/cve-2025-4918-mitigate-firefox-out-of-bounds-write -

19 May 2025, 21:15

Type Values Removed Values Added
CWE CWE-125
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5

19 May 2025, 13:35

Type Values Removed Values Added
Summary
  • (es) Un atacante logró realizar una lectura o escritura fuera de los límites en un objeto "Promise" de JavaScript. Esta vulnerabilidad afecta a Firefox (versión anterior a 138.0.4), Firefox ESR (versión anterior a 128.10.1) y Firefox ESR (versión anterior a 115.23.1).

18 May 2025, 20:15

Type Values Removed Values Added
References
  • () https://www.mozilla.org/security/advisories/mfsa2025-36/ -
  • () https://www.mozilla.org/security/advisories/mfsa2025-37/ -
Summary (en) An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox ESR < 115.23.1. (en) An attacker was able to perform an out-of-bounds read or write on a JavaScript `Promise` object. This vulnerability affects Firefox < 138.0.4, Firefox ESR < 128.10.1, and Firefox ESR < 115.23.1.

17 May 2025, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-17 22:15

Updated : 2025-05-21 16:15

NVD link : CVE-2025-4918

Mitre link : CVE-2025-4918

CVE.ORG link : CVE-2025-4918

JSON object : View

Products Affected

No product.

CWE
CWE-125

Out-of-bounds Read