CVE-2023-26917: Cesnet Libyang

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

libyang from v2.0.164 to v2.1.30 was discovered to contain a NULL pointer dereference via the function lysp_stmt_validate_value at lys_parse_mem.c.

Affected products

• Cesnet Libyang: from 2.0.164, up to and including 2.1.30

Published 2023-04-11. Last modified 2026-06-17.