Description
libyang through 6.4.13 contains an uninitialized pointer free vulnerability in lydxml_env_netconf_rpc() in src/parser_xml.c when parsing NETCONF rpc action envelopes. Peers with a NETCONF session can send an action element containing non-whitespace text via lyd_parse_op() to crash servers like netopeer2 or corrupt the heap.
Published: 2026-10-22
Score: 6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 22 Oct 2026 11:00:00 +0000

Type Values Removed Values Added
Description libyang through 6.4.13 contains an uninitialized pointer free vulnerability in lydxml_env_netconf_rpc() in src/parser_xml.c when parsing NETCONF rpc action envelopes. Peers with a NETCONF session can send an action element containing non-whitespace text via lyd_parse_op() to crash servers like netopeer2 or corrupt the heap.
Title libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser
First Time appeared Cesnet
Cesnet libyang
Weaknesses CWE-824
CPEs cpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
Vendors & Products Cesnet
Cesnet libyang
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Cesnet Libyang
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-22T10:57:45.264Z

Reserved: 2026-10-22T10:37:07.419Z

Link: CVE-2026-115327

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-22T11:17:51.730

Modified: 2026-10-22T11:17:51.730

Link: CVE-2026-115327

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-824

    Access of Uninitialized Pointer