CVE-2026-4722

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-4722
Privilege escalation in the IPC component. This vulnerability affects Firefox < 149 and Thunderbird < 149.

8.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2010097 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-20/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-23/
Configurations

Configuration 1 (hide)

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
History

24 Mar 2026, 21:16

Type Values Removed Values Added
Summary (en) Privilege escalation in the IPC component. This vulnerability affects Firefox < 149. (en) Privilege escalation in the IPC component. This vulnerability affects Firefox < 149 and Thunderbird < 149.
References
  • () https://www.mozilla.org/security/advisories/mfsa2026-23/ -

24 Mar 2026, 19:10

Type Values Removed Values Added
First Time Mozilla
Mozilla firefox
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
References () https://bugzilla.mozilla.org/show_bug.cgi?id=2010097 - () https://bugzilla.mozilla.org/show_bug.cgi?id=2010097 - Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2026-20/ - () https://www.mozilla.org/security/advisories/mfsa2026-20/ - Vendor Advisory
CWE NVD-CWE-noinfo

24 Mar 2026, 15:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 8.8

24 Mar 2026, 13:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-24 13:16

Updated : 2026-03-24 21:16

NVD link : CVE-2026-4722

Mitre link : CVE-2026-4722

CVE.ORG link : CVE-2026-4722

JSON object : View

Products Affected

mozilla

  • firefox
CWE
NVD-CWE-noinfo