CVEvulnerability
CVE-2026-44673
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-05-14
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-190
Description
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.
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh github.com
- https://access.redhat.com/errata/RHSA-2026:24545 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:24758 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:25051 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:49666 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:51339 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:51351 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:51368 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:65467 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:65477 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:65508 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-44673 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2477617 bugzilla.redhat.com
- https://github.com/CESNET/libyang/security/advisories/GHSA-vw2p-pq79-92xh github.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44673.json security.access.redhat.com