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CVE-2026-44673
HIGH(7.5)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Risk Signal Score19/100 — NIEDRIG
- CVSS 7.5 — Hoch
EPSS-Score
0%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
7.5
Technische Schwere
Beschreibung
libyang is a YANG data modeling language library. Prior to SO 5.2.15, lyb_read_string() in src/parser_lyb.c contains an integer overflow that results in a heap buffer overflow when parsing a maliciously crafted LYB binary blob. An attacker who can supply LYB data to any libyang consumer (NETCONF server, sysrepo, etc.) can trigger a crash or potential heap corruption. This vulnerability is fixed in SO 5.2.15.
Referenzen
- https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh
- https://access.redhat.com/errata/RHSA-2026:24545
- https://access.redhat.com/errata/RHSA-2026:24758
- https://access.redhat.com/errata/RHSA-2026:25051
- https://access.redhat.com/security/cve/CVE-2026-44673
- https://bugzilla.redhat.com/show_bug.cgi?id=2477617
- https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44673.json