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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2021-45810

GlobalProtect-openconnect versions prior to 2.0.0 (exclusive) are affected by incorrect access control in GPService through DBUS, GUI. The way GlobalProtect-Openconnect is set up enables arbitrary users to start a VPN connection to arbitrary servers. By hosting an openconnect compatible server, the attack can redirect the entire host's traffic via their own server.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-45810
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:40 UTC · Revision 1

Source evidence

CVE-2021-45810

core-osv · Original source

Published 22 Mar 2022, 11:15 UTC

GlobalProtect-openconnect versions prior to 2.0.0 (exclusive) are affected by incorrect access control in GPService through DBUS, GUI. The way GlobalProtect-Openconnect is set up enables arbitrary users to start a VPN connection to arbitrary servers. By hosting an openconnect compatible server, the attack can redirect the entire host's traffic via their own server.

osv:CVE-2021-45810
Complete source record
{
  "id": "f75c21b967f45c84aa1f5e921c0a5278a37dfd922e203af6257ace0221973938",
  "url": "https://osv.dev/vulnerability/CVE-2021-45810",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-45810",
    "summary": "GlobalProtect-openconnect versions prior to 2.0.0 (exclusive) are affected by incorrect access control in GPService through DBUS, GUI. The way GlobalProtect-Openconnect is set up enables arbitrary users to start a VPN connection to arbitrary servers. By hosting an openconnect compatible server, the attack can redirect the entire host's traffic via their own server.",
    "evidence": "osv:CVE-2021-45810",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-45810",
      "aliases": [
        "CVE-2021-45810"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/yuezk/globalprotect-openconnect",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "db9249bd614f889e1722d78a7c6ac596e767e901"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.0-beta8",
            "v2.0.0-beta7",
            "v2.0.0-beta6",
            "v2.0.0-beta5",
            "v2.0.0-beta4",
            "v2.0.0-beta3",
            "v2.0.0-beta2",
            "v2.0.0-beta1",
            "v1.4.9",
            "v1.4.8",
            "v1.4.7",
            "v1.4.6",
            "v1.4.5",
            "v1.4.4",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.4",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.9",
            "v1.2.8",
            "v1.2.7",
            "v1.2.6",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45810.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-45810-3ef27f8d",
                "digest": {
                  "length": 188,
                  "function_hash": "203534085118036193701092109500125989668"
                },
                "source": "https://github.com/yuezk/globalprotect-openconnect/commit/db9249bd614f889e1722d78a7c6ac596e767e901",
                "target": {
                  "file": "crates/openconnect/src/ffi/vpn.c",
                  "function": "vpn_disconnect"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-45810-94b974e7",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "135665407745645118951894506806192331416",
                    "105318470486006335482657014343490808985",
                    "89962990449289855985667032590753126459",
                    "60170663542358963231049852355526933052"
                  ]
                },
                "source": "https://github.com/yuezk/globalprotect-openconnect/commit/db9249bd614f889e1722d78a7c6ac596e767e901",
                "target": {
                  "file": "crates/openconnect/src/ffi/vpn.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:10:57Z"
          }
        }
      ],
      "modified": "2026-10-20T14:10:57.122310254Z",
      "provider": "osv",
      "references": [
        "https://github.com/yuezk/GlobalProtect-openconnect/issues/114",
        "https://github.com/yuezk/GlobalProtect-openconnect/issues/114#issuecomment-1914008203"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-45810",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388683,
  "published_at": "2022-03-22T11:15:07.807+00:00"
}