ITSECURITYWHAT HAPPENED · DOES IT AFFECT YOU · WHAT TO DO
BoardVulnerabilities › CVE-2026-42009
7.5High CVE-2026-42009 Gnu

A flaw was found in gnutls.

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.

What happened

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.

Does it affect you

Not enough information

No products recorded, so this cannot be matched against anything.

What to do

The vendor has not published remediation yet. We do not invent it.

Vendor's affected list

rhel
Exactly 6.0

Sources

A verdict here is derived from what you told us and what the vendor published. It is not an assessment of your environment. Why we never say you are safe.