CVE-2026-5590
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.
- Score
- CVSS 3.1 6.4 Medium
- Status
- Analyzed - vulnerabilities@zephyrproject.org
- Published
- 2026-04-05
- Last modified
- 2026-10-15
- Weaknesses
- CWE-476
Affected products
References
- https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-4vqm-pw24-g9jp
