CVE-2026-74949

high Red Hat
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Published: August 18, 2026 (19 days ago)
Last Modified: August 18, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Privilege escalation due to use-after-free in the Graphics: Canvas2D component

CWE

CWE-787

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 www.mozilla.org 🔗 www.mozilla.org