CVE-2026-4714

HIGH EPSS 34.7%
Published Mar 24, 20263mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 24, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
34.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-754

Affected Products 2

VendorProductVersionRange
mozillafirefox* <140.9.0
mozillafirefox* <149.0

References 5

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=2018126
    Permissions Required
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-20/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-22/
    Vendor Advisory
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-23/
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-24/

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.