Name: CVE-2026-84732: Integer Overflow or Wraparound
Creator: Rapid7
Published: 2026-09-07T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-84732, CWE-190, CVSS 8.7, EPSS 0.00544

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

CVSS Details

CVSS 4.0 Base Score: 8.7 (HIGH)
CVSS 4.0 Vector: (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade openvpn	Sep 11, 2026	Sep 7, 2026
Freebsd	—	Upgrade openvpn	Sep 7, 2026	Sep 4, 2026
Ubuntu	—	Upgrade openvpn	Oct 6, 2026	Sep 30, 2026

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CVSS Details

Covered by Rapid7

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