Vulnerabilities CVE-2026-1584

CVE-2026-1584

High

Open

TLP:CLEAR

Gnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binder

NVD CVE.org

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Description

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.

Details

CVSS Score: 7.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence: 90%
Published: Apr 9, 2026
Last Modified: Aug 21, 2026

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