๐Ÿ›ก๏ธ CVE-2026-42009
๐ŸŸ  CVSS 7.5 โ€” High โœ… No Known Exploit CWE-475 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not correctly handle packets with duplicate sequence numbers. This could lead to unstable packet ordering or undefined behavior, resulting in a denial of service.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-475
Public Exploit โœ… No
Source NVD
Published 2026-05-18
Updated 2026-06-09
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux โ€” โ€”
enterprise-linux-for-els โ€” โ€”
enterprise-linux-for-eus โ€” โ€”
enterprise-linux-for-ibm-z-systems โ€” โ€”
enterprise-linux-for-ibm-z-systems-els โ€” โ€”
enterprise-linux-for-ibm-z-systems-eus โ€” โ€”
enterprise-linux-for-power-little-endian โ€” โ€”
enterprise-linux-for-power-little-endian-els โ€” โ€”
enterprise-linux-for-power-little-endian-eus โ€” โ€”
enterprise-linux-for-update-services-for-sap-solutions โ€” โ€”
enterprise-linux-server-for-power-little-endian-update-services-for-sap-solutions โ€” โ€”
gnutls โ€” โ€”
hardened-images โ€” โ€”
openshift-container-platform โ€” โ€”
unknown โ€” โ€”

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