CVE-2026-8969

HIGH EPSS 20.6%
Published May 19, 20261mo ago · Modified Jun 17, 20261w ago
8.1 CVSS 3.1
High
Find Similar
Published May 19, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
20.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-693

Affected Products 2

VendorProductVersionRange
mozillafirefox* <151.0.0
mozillathunderbird* <151.0.0

References 3

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=2031123
    Permissions Required
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-46/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-50/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.