Home / Vulnerability Intelligence / CVE-2026-5733

CVE-2026-5733 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: April 7, 2026

Firefox - Buffer Overflow

Published: April 7, 2026Updated: April 7, 2026Remote Exploitable

Overview

Firefox < 149.0.2 contains a buffer overflow caused by incorrect boundary conditions in the Graphics: WebGPU component, letting attackers cause memory corruption or potential code execution, exploit requires no special privileges.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Attackers can cause memory corruption, potentially leading to remote code execution or application crash.

Mitigation

Update to version 149.0.2 or later.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2022554
https://www.mozilla.org/security/advisories/mfsa2026-25/
https://www.mozilla.org/security/advisories/mfsa2026-28/

Related Resources

Vulnerability Intelligence Dashboard
Credential Scanner

Details

CVE ID: CVE-2026-5733
Severity: High
CVSS Score: 8.8
Type: buffer_overflow
Status: modified

CWE

CWE-119

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H