CVE-2026-6750 - Vulnerability Analysis
HighCVSS: 8.8Last Updated: April 22, 2026
Mozilla Firefox - Privilege Escalation
Published: April 21, 2026Updated: April 22, 2026Remote Exploitable
Overview
Mozilla Firefox < 150, Firefox ESR < 115.35, and Firefox ESR < 140.10 contain a privilege escalation caused by a flaw in the Graphics: WebRender component, letting attackers escalate privileges, exploit requires no special conditions.
Severity & Score
Severity: High
CVSS Score: 8.8
Impact
Attackers can escalate their privileges, potentially gaining higher access on the system.
Mitigation
Update to Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10 or later.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2023407
- https://www.mozilla.org/security/advisories/mfsa2026-30/
- https://www.mozilla.org/security/advisories/mfsa2026-31/
- https://www.mozilla.org/security/advisories/mfsa2026-32/
- https://www.mozilla.org/security/advisories/mfsa2026-33/
- https://www.mozilla.org/security/advisories/mfsa2026-34/
Related Resources
Details
- CVE ID
- CVE-2026-6750
- Severity
- High
- CVSS Score
- 8.8
- Type
- broken_access_control
- Status
- unconfirmed
CWE
- CWE-269
CVSS Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H