Remote Code Execution Vulnerability in Mozilla Firefox
CVE-2026-15718

4.3MEDIUM

Key Information:

Vendor

Mozilla
Status
Firefox
Vendor
CVE Published:
14 July 2026

What is CVE-2026-15718?

A security flaw in Mozilla Firefox allows for potential remote code execution exploits. Although the exploit code for this vulnerability is publicly available, there have been no confirmed instances of its exploitation in the wild. Users are advised to upgrade to Firefox version 152.0.6 or later to mitigate the risks associated with this vulnerability.

Affected Version(s)

Firefox 152.0.6

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2045443
https://www.mozilla.org/security/advisories/mfsa2026-67/

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Christian Holler
.