CVEvulnerability
CVE-2026-1584
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-04-09
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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.
Affected configurations
• gnu gnutls
• redhat hardened images
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://access.redhat.com/errata/RHSA-2026:7477 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-1584 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2435258 Issue Tracking, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:7477 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-1584 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2435258 Issue Tracking, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1584.json security.access.redhat.com