What’s Vulnerable › Vulnerabilities

CVE-2017-7479

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-15 · updated 2026-06-17
• Weakness: CWE-617

Description

OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.

Affected products

• OpenVPN: through 2.3.14; 2.4.0, 2.4.0-alpha2, 2.4.0-beta1, 2.4.0-beta2, 2.4.0-rc1, 2.4.0-rc2 (+1)

References

• http://www.debian.org/security/2017/dsa-3900
• http://www.securityfocus.com/bid/98443
• http://www.securitytracker.com/id/1038473
• https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits
• http://www.debian.org/security/2017/dsa-3900
• http://www.securityfocus.com/bid/98443
• http://www.securitytracker.com/id/1038473
• https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits

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