CVE-2026-19377

CVSS 6.0 (medium) · published 2026-10-15

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.

Weakness: CWE-295

Source: NVD CVE-2026-19377

References

• https://knowledge.catonetworks.com/docs/security-vulnerability-cve-2026-19377-that-impacts-cato-client-versions

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