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CVE-2026-115327— libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser

Quick assessment

Affected
CESNET libyang
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libyang 6.4.13 及更早版本在 文件的 函数中存在一个未初始化指针释放漏洞，该漏洞发生在解析 NETCONF RPC 操作信封时。拥有 NETCONF 会话的对等方可通过 发送包含非空白文本的操作元素，从而导致 netopeer2 等服务器崩溃或堆内存损坏。

CVSS 5.3 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
CESNET libyang ≤ 6.4.13 affected
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I. Basic Information for CVE-2026-115327

Vulnerability Information
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Vulnerability Title
libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用未经初始化的指针
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
CESNET libyang 0 ~ 6.4.13 -

II. Public POCs for CVE-2026-115327

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III. Intelligence Information for CVE-2026-115327

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Patches & Fixes for CVE-2026-115327 (1)

Vendor Advisories for CVE-2026-115327 (1)

Security Blog Posts for CVE-2026-115327 (1)

Vendor Pages for CVE-2026-115327 (1)

Other References for CVE-2026-115327 (1)

IV. Related Vulnerabilities

Same product: libyang
Same vendor: CESNET
Same weakness: CWE-824

V. Comments for CVE-2026-115327

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