[ CVE-2026-19377 · Published 15 Oct 2026 ]
Vulnerability in Cato Networks Cato Client for Windows
CVSS 6.0
EPSS <1%No fix listed yet
[ Description ]Official description
Improper certificate validation in the tunnel handshake in Cato Client allows a man-in-the-middle attacker to impersonate a Cato Point of Presence (PoP) server and intercept or modify tunnel traffic.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.