Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openvpn | Openvpn | >= 2.6.0, < 2.6.20 |
Related Weaknesses (CWE)
References
- https://community.openvpn.net/ReleaseHistory#openvpn-2620-released-22-april-2026Release Notes
- https://community.openvpn.net/ReleaseHistory#openvpn-272-released-22-april-2026Release Notes
- https://community.openvpn.net/Security%20Announcements/CVE-2026-35058Vendor Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2381ExploitMitigationThird Party Advisory
FAQ
What is CVE-2026-35058?
CVE-2026-35058 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 cau...
How severe is CVE-2026-35058?
CVE-2026-35058 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35058?
Check the references section above for vendor advisories and patch information. Affected products include: Openvpn Openvpn.