CVE-2026-1584

HIGH EPSS 67.5%

Published Apr 9, 20262mo ago · Modified Jun 17, 20261w ago

7.5 CVSS 3.1

High

Published Apr 9, 2026 2mo ago

Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score

7.5

Exploitability

3.9

Impact

3.6

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

67.5% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 2

Vendor	Product	Version	Range
gnu	gnutls	*	any
redhat	hardened_images	*	any

References 3

access.redhat.com https://access.redhat.com/errata/RHSA-2026:7477
access.redhat.com https://access.redhat.com/security/cve/CVE-2026-1584

Vendor Advisory
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2435258

Issue TrackingVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.