What’s Vulnerable › Vulnerabilities

CVE-2025-12106

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-01 · updated 2026-09-26
• Weakness: CWE-126

Description

Insufficient argument validation in OpenVPN 2.7_alpha1 through 2.7_rc1 allows an attacker to trigger a heap buffer over-read when parsing IP addresses

Affected products

• OpenVPN: 2.6.13, 2.7-alpha1, 2.7-alpha2, 2.7-alpha3, 2.7-beta1, 2.7-beta2 (+2)

References

• https://community.openvpn.net/Security%20Announcements/CVE-2025-12106
• https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html

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