Security advisory

{
  "id": "227e72b2a3274d169e50ae4b407fab94c46f6f87f0aa9e1857d80cd61555be7a",
  "url": "https://osv.dev/vulnerability/CVE-2023-26463",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2023-26463",
    "summary": "strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named \"public\" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.",
    "evidence": "osv:CVE-2023-26463",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2023-26463",
      "aliases": [
        "CVE-2023-26463"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/strongswan/strongswan",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e09bc70d124554f8ee892f3ee4a988ce6d2e7c90"
                },
                {
                  "fixed": "c0ae81fc834b96f1f0ae1e00a2b1d35b212c3668"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "5.9.10"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:strongswan:strongswan:5.9.8:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.9.8-NA"
                      },
                      {
                        "last_affected": "5.9.8-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:strongswan:strongswan:5.9.9:-:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.9.9-NA"
                      },
                      {
                        "last_affected": "5.9.9-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.9.8-NA",
            "5.9.9-NA",
            "5.9.10rc1",
            "android-2.4.1-1",
            "android-2.4.1",
            "android-2.4.0",
            "5.9.9",
            "5.9.9rc2",
            "5.9.9rc1",
            "5.9.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-26463.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.532353977Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26463.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-26463",
        "https://security.netapp.com/advisory/ntap-20230517-0010/",
        "https://github.com/strongswan/strongswan/releases",
        "https://www.strongswan.org/blog/2023/03/02/strongswan-vulnerability-%28cve-2023-26463%29.html"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/26xxx/CVE-2023-26463.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-26463",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518788,
  "published_at": "2023-04-14T00:00:00+00:00"
}