CVE-2026-1584

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:7477
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
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gnu:gnutls:-:::::::*
	cpe:2.3:a:redhat:hardened_images:-:::::::*

History

No history.

Information

Published : 2026-04-09 18:16

Updated : 2026-09-01 13:18

NVD link : CVE-2026-1584

Mitre link : CVE-2026-1584

CVE.ORG link : CVE-2026-1584

JSON object : View

Products Affected

gnu

gnutls

redhat

hardened_images

CWE

CWE-476

NULL Pointer Dereference

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