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The vulnerability of the tls_crypt_v2_extract_client_key() function in the OpenVPN software allows a hacker to trigger a service failure.
🗓️ 21 May 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 2 Views
| Reporter | Title | Published | Views | Family All 42 |
|---|---|---|---|---|
 | OpenVPN -- server DOS and data leak in TLS handshake vulnerabilities | 19 Apr 202600:00 | – | freebsd |
 | CVE-2026-35058 | 8 Jun 202619:29 | – | attackerkb |
 | Amazon Linux 2023 : openvpn, openvpn-devel (ALAS2023-2026-1644) | 20 May 202600:00 | – | nessus |
| Debian dla-4653 : openvpn - security update | 26 Jun 202600:00 | – | nessus |
| Debian dsa-6289 : openvpn - security update | 22 May 202600:00 | – | nessus |
| Fedora 44 : openvpn (2026-086acf3001) | 30 Apr 202600:00 | – | nessus |
| Fedora 43 : openvpn (2026-670067411c) | 28 Apr 202600:00 | – | nessus |
| Fedora 42 : openvpn (2026-ddc5696c20) | 2 May 202600:00 | – | nessus |
| FreeBSD : OpenVPN -- server DOS and data leak in TLS handshake vulnerabilities (549313db-3e93-11f1-8d38-7fbbe0285610) | 25 Apr 202600:00 | – | nessus |
| Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : OpenVPN vulnerabilities (USN-8286-1) | 21 May 202600:00 | – | nessus |
10
| Source | Link |
|---|---|
| talosintelligence | www.talosintelligence.com/vulnerability_reports/TALOS-2026-2381 |
| community | www.community.openvpn.net/Security%20Announcements/CVE-2026-35058 |
| security-tracker | www.security-tracker.debian.org/tracker/CVE-2026-35058 |
| ubuntu | www.ubuntu.com/security/CVE-2026-35058 |
| web | www.web.nvd.nist.gov/view/vuln/detail |
| talosintelligence | www.talosintelligence.com/reports/TALOS-2026-2381 |
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21 May 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 26.8
CVSS 37.7
EPSS0.00317