CVE-2026-35058

medium

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.

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-35058

https://blog.talosintelligence.com/tp-link-photoshop-openvpn-norton-vpn-vulnerabilities/

https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2381

https://community.openvpn.net/ReleaseHistory#openvpn-272-released-22-april-2026

https://community.openvpn.net/ReleaseHistory#openvpn-2620-released-22-april-2026

Details

Source: Mitre, NVD

Published: 2026-06-08

Updated: 2026-06-09

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

CVSS v4

Base 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

Severity: Medium

EPSS

EPSS: 0.00035