What’s Vulnerable › Vulnerabilities

CVE-2017-7478

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-05-15 · updated 2026-06-17
• Weakness: CWE-617

Description

OpenVPN version 2.3.12 and newer is vulnerable to unauthenticated Denial of Service of server via received large control packet. Note that this issue is fixed in 2.3.15 and 2.4.2.

Affected products

• OpenVPN: 2.3.12, 2.3.13, 2.3.14, 2.4.0, 2.4.0-alpha2, 2.4.0-beta1 (+4)

References

• http://www.securityfocus.com/bid/98444
• http://www.securitytracker.com/id/1038473
• https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
• https://www.exploit-db.com/exploits/41993/
• http://www.securityfocus.com/bid/98444
• http://www.securitytracker.com/id/1038473
• https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
• https://www.exploit-db.com/exploits/41993/

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