Publicly Exploitable Flaw in Firefox by Mozilla
CVE-2026-15719

5.4MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox
Vendor
CVE Published:
14 July 2026

What is CVE-2026-15719?

A vulnerability has been identified in Mozilla Firefox that is publicly known to have exploit code available. While there have been no known attacks leveraging this flaw in the wild, users are advised to update to Firefox version 152.0.6, where this issue has been addressed, to maintain the integrity and security of their systems. Regular updates and vigilance are crucial in protecting against potential security risks.

Affected Version(s)

Firefox 152.0.6

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2043820
https://www.mozilla.org/security/advisories/mfsa2026-67/

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Atsushi Sada
.