Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
History

Mon, 08 Jun 2026 21:30:00 +0000


Mon, 08 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Title Improper Packet Length Validation in OpenVPN's tls-crypt-v2 Leads to DoS
First Time appeared Openvpn
Openvpn openvpn
Vendors & Products Openvpn
Openvpn openvpn

Mon, 08 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 08 Jun 2026 19:45:00 +0000

Type Values Removed Values Added
Description Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
Weaknesses CWE-617
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-06-08T19:49:17.361Z

Reserved: 2026-04-13T10:28:10.361Z

Link: CVE-2026-35058

cve-icon Vulnrichment

Updated: 2026-06-08T19:47:23.911Z

cve-icon NVD

Status : Received

Published: 2026-06-08T20:17:00.497

Modified: 2026-06-08T21:16:32.583

Link: CVE-2026-35058

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-08T20:30:06Z