What’s Vulnerable › Vulnerabilities

CVE-2026-84732

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-07 · updated 2026-09-08
• Weakness: CWE-190

Description

Retransmissions of ACK packet ID in OpenVPN through 2.6.22 and 2.7.6 allow remote unauthenticated attackers to cause a denial of service via crafted inputs that trigger a timeout integer overflow

Affected products

• OpenVPN: through 2.6.22; through 2.7.6

References

• https://community.openvpn.net/Security%20Announcements/CVE-2026-84732

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