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CVE-2026-6774

Mitigation bypass in the DOM: Security component

Published: Apr 21, 2026Updated: Apr 21, 2026 Sources: CVE List NVD
NVD MITRE
5.4CVSS
MEDIUM

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None

Weaknesses

CWE-693

Affected Products

Firefox
Mozilla

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2016915
bugzilla.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2026-30/
mozilla.org

Timeline

Published
Apr 21, 2026
Last Updated
Apr 21, 2026

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