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CVE-2026-5590

5.3 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.3 · zephyrprojectNVD modified 2026-10-15 23:17

Affected (CPE criteria) 1

  • cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

References 1