CVE-2026-115327libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-824
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Received
- Record last updated
- Oct 22, 2026
- First seen by InfoSec Signals
- Oct 22, 2026
Affected products
CESNET libyang cesnet:libyang (from the name) | through 6.4.13 | CNA record |
References
- https://github.com/CESNET/libyang/issues/2595issue-tracking
- https://github.com/CESNET/libyang/commit/927fce908774289a7d9c07fff5704c33965c9773patch
- https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1330-L1342technical-description
- https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1196-L1224technical-description
- https://hackmd.io/@haindpwn/libyang-netconf-rpc-envelope-uninit-freetechnical-description
- https://github.com/CESNET/libyangproduct
- https://www.vulncheck.com/advisories/libyang-through-6.4.13-uninitialized-pointer-free-in-netconf-rpc-parserthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.