CVE-2026-19377mediumCWE-295

CVE-2026-19377: medium-severity vulnerability in Cato Client for Android

Improper certificate validation in Cato Client tunnel handshake

Published

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6epss 0.1%
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.
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
Cato Networks · Cato Client for AndroidCato Networks · Cato Client for iOSCato Networks · Cato Client for LinuxCato Networks · Cato Client for macOSCato Networks · Cato Client for Windows