CVE-2019-20396

PoC —

CVSS 3.1

6.5 medium

EPSS

2%p79

Published

Jan 22, 2020 (Jan 22, 2020)

Modified

Jun 17, 2026

Description

A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lys_parse_path parsing.

Vendors: cesnet
Products: libyang
Weakness: CWE-119
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.9%)

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