What’s Vulnerable › Vulnerabilities
CVE-2017-7520
- Severity: high (CVSS 7.4 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2017-06-27 · updated 2026-06-17
- Weakness: CWE-200
Description
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.
Affected products
- OpenVPN: through 2.3.16; 2.4.0, 2.4.0-alpha2, 2.4.0-beta1, 2.4.0-beta2, 2.4.0-rc1, 2.4.0-rc2 (+2)
References
- http://www.debian.org/security/2017/dsa-3900
- http://www.securityfocus.com/bid/99230
- http://www.securitytracker.com/id/1038768
- https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
- http://www.debian.org/security/2017/dsa-3900
- http://www.securityfocus.com/bid/99230
- http://www.securitytracker.com/id/1038768
- https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243
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