# CVE-2024-27903: CVE-2024-27903

Status: published. Published: 2024-07-08. Updated: 2026-11-03.

OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an attacker to load an arbitrary plug-in which can be used to interact with the privileged OpenVPN interactive service.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- OpenVPN / OpenVPN 2: 2.6.9 and earlier (affected). Source: CNA: OpenVPN; platforms: Windows
- openvpn / openvpn2: ≥ 0; < 2.6.10 (affected, custom). Source: ADP: CISA-ADP

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*",
            "versionEndExcluding": "2.5.10",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*",
            "versionEndExcluding": "2.6.10",
            "versionStartIncluding": "2.6.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: ADP: CISA-ADP

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: nvd@nist.gov

- CVSS 3.1: 7.2 (high); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: 8.92% as of 2026-11-03; percentile 95.25%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-283, CWE-434

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://community.openvpn.net/openvpn/wiki/CVE-2024-27903 (CNA: OpenVPN)

- https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/ (CNA: OpenVPN)

- https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html (CNA: OpenVPN)

- https://community.openvpn.net/openvpn/wiki/CVE-2024-27903 (ADP: CVE; x_transferred)

- https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/ (ADP: CVE; x_transferred)

- https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html (ADP: CVE; x_transferred)

- https://community.openvpn.net/openvpn/wiki/CVE-2024-27903 (security@openvpn.net; Vendor Advisory)

- https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/ (security@openvpn.net; Vendor Advisory)

- https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html (security@openvpn.net; Mailing List)

- https://community.openvpn.net/openvpn/wiki/CVE-2024-27903 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/ (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://www.mail-archive.com/openvpn-users@lists.sourceforge.net/msg07534.html (af854a3a-2127-422b-91ae-364da2661108; Mailing List)

## Provenance

- CNA: OpenVPN: https://www.cve.org/CVERecord?id=CVE-2024-27903; retrieved 2026-11-04; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-27903; retrieved 2026-11-04; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-27903; retrieved 2026-11-03; source updated Not reported

Revision: dab9f0e4d572c11ade067af896bd9e5ebae79b4323e2114e6fd3da2c53bb44b7

Canonical: https://y2.dev/cve/CVE-2024-27903

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.