CVE-2026-18367 Privilege escalation in Sophos Endpoint for macOS

Critical 9.3 Published Updated

Local users can escalate privileges to root and execute arbitrary code on Sophos Endpoint and Home for macOS.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-18367?

CVE-2026-18367 is a critical vulnerability in Sophos Endpoint for macOS, published on 6 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A privilege escalation vulnerability allows local users to execute arbitrary code as root via Sophos Endpoint for macOS older than version 2026.1.1 and Sophos Home for macOS older than version 10.11.6.

Weakness: CWE-285

Which versions are affected by CVE-2026-18367?

How do I fix CVE-2026-18367?

No fix has been published for CVE-2026-18367 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-18367 being exploited?

There is no known exploitation of CVE-2026-18367 in the wild and no public exploit code.

Sources

Also known as GHSA-qf3w-qfqh-77ch.

Is CVE-2026-18367 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free