CVE-2026-42009
HIGH
MEDIUM
Priority: 0.10
BB Relevance:
75/100
Published: 2026-05-18
Modified: 2026-10-26
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (44)
Showing 30 of 44 entries
References & Advisories (42)
Third Party Advisory
Third Party Advisory
Third Party Advisory
Third Party Advisory
Third Party Advisory
Issue Tracking
Third Party Advisory
Showing 25 of 42 references