CVE-2026-1584 — HIGH (7.5) — White Hats Nepal

Vulnerability 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 Score

7.5

HIGH

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

Affected Products

Vendor	Product	Versions
Gnu	Gnutls	-
Redhat	Hardened Images	-

Related Weaknesses (CWE)

CWE-476

References

https://access.redhat.com/errata/RHSA-2026:7477
https://access.redhat.com/security/cve/CVE-2026-1584Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2435258Issue TrackingVendor Advisory

FAQ

What is CVE-2026-1584?

CVE-2026-1584 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 durin...

How severe is CVE-2026-1584?

CVE-2026-1584 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-1584?

Check the references section above for vendor advisories and patch information. Affected products include: Gnu Gnutls, Redhat Hardened Images.