CVEvulnerability

CVE-2026-5590

5.3 MEDIUM Published 2026-04-05 Modified 2026-10-15 Official page ↗
Status
Analyzed
Published
2026-04-05
Last modified
2026-10-15
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.4 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-476

Description

A race condition during TCP connection teardown can cause tcp_recv() to operate on a connection that has already been released. If tcp_conn_search() returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcp_backlog_is_full() and dereferenced without validation, leading to a crash.

Affected configurations

• zephyrproject zephyr (<= 4.3.0)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References