p PatchFirst

CVE-2026-1584

CVE-2026-1584 · Gnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binder

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.

CVSS 7.5 · High · EPSS 1.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

Original sources

Check your server →