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
Published: 2026-09-07
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories

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History

Mon, 07 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title openvpn: OpenVPN: Remote Denial of Service via crafted ACK packets
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Important

Mon, 07 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
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
Weaknesses CWE-190
References
Metrics cvssV4_0

{'score': 8.7, '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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-09-07T08:16:40.537Z

Reserved: 2026-09-02T07:47:20.537Z

Link: CVE-2026-84732

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-07T09:17:16.840

Modified: 2026-09-07T09:17:16.840

Link: CVE-2026-84732

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-07T08:16:40Z

Links: CVE-2026-84732 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-190

    Integer Overflow or Wraparound