VULNERABILITY INTELLIGENCE
CVE-2026-1584
CVSS score7.5 HIGH
EPSS probability1.32%
CISA KEVNot currently listed
Published2026-04-09
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- CWE-476: NULL Pointer Dereference
Primary references
- secalert@redhat.com
- secalert@redhat.com — Vendor Advisory
- secalert@redhat.com — Issue Tracking, Vendor Advisory
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c — Vendor Advisory
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c — Issue Tracking, Vendor Advisory
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c