{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "libyang",
          "vendor": "CESNET",
          "versions": [
            {
              "lessThanOrEqual": "6.4.13",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "6.4.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "HaiND from the Post and Telecommunication Institute of Technology"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Mar (mardgez13)"
        }
      ],
      "datePublic": "2026-10-16T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-824",
              "description": "Access of Uninitialized Pointer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T10:57:45.264Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/CESNET/libyang/issues/2595"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/CESNET/libyang/commit/927fce908774289a7d9c07fff5704c33965c9773"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1330-L1342"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/CESNET/libyang/blob/v6.4.13/src/parser_xml.c#L1196-L1224"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://hackmd.io/@haindpwn/libyang-netconf-rpc-envelope-uninit-free"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/CESNET/libyang"
        },
        {
          "name": "VulnCheck Advisory: libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/libyang-through-6.4.13-uninitialized-pointer-free-in-netconf-rpc-parser"
        }
      ],
      "title": "libyang through 6.4.13 Uninitialized Pointer Free in NETCONF RPC Parser",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-115327",
    "datePublished": "2026-10-22T10:57:45.264Z",
    "dateReserved": "2026-10-22T10:37:07.419Z",
    "dateUpdated": "2026-10-22T10:57:45.264Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}