cvedb.io
CVE-2026-42009
HIGH · CVSS 7.5
EPSS exploitation probability: 61%
Published 2026-05-18T13:16:32.707 · Last modified 2026-06-24T17:16:59.097

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.