OpenVPN fixes 1 vulnerability

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[TLP:CLEAR] OpenVPN fixes 1 vulnerability

OpenVPN versions 2.6.20 and 2.7.2 fix 1 vulnerability [1].

OpenVPN - DoS (CVE-2026-35058)

CVSS 6.9 (Medium)

An authenticated remote attacker can perform a DoS attack by sending a specially crafted packet due to improper packet length validation during tls-crypt-v2 key extraction in OpenVPN [1].

The vulnerability is present in product:

OpenVPN; >=2.6.0, <=2.6.19; >=2.7_alpha1, <=2.7.1

CVSS: 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

More information:

CVE-2026-35058 at cve.org, NVD
CWE-617: Reachable assertion at cwe.mitre.org

The vulnerability was publicly disclosed 8. 6. 2026.

Links

By CESNET, z.s.p.o. Michaela Jarošová on 9. 6. 2026.

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[TLP:CLEAR] OpenVPN fixes 1 vulnerability

OpenVPN - DoS (CVE-2026-35058)

CVSS 6.9 (Medium)

Links