Cyber Resilience

CVE-2023-26917

HighPublic PoC

Published: 11 April 2023

Published
11 April 2023
Modified
11 February 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0030 53.8th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-26917 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Cesnet Libyang. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 46.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cesnet
libyang
2.0.164 — 2.1.30

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References