Reference page — cumulative record through Thursday, August 20, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-35058

CVE-2026-35058MEDIUM

OpenVPN OpenVPN — 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 allo…

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   P   L   P   N   N   H    6.9   .0039   32.6     —

AFFECTED
  Product  Versions  Fixed
  OpenVPN  2.6.0 –   —

TIMELINE
  Apr 13  Reserved by OpenVPN
  Jun 8   EXPLOIT PUBLISHED — CVE-2026-35058 (OpenVPN). Public exploit reference added.
  Jun 8   Published (CNA: OpenVPN)

CWE-617 · CNA: OpenVPN · CVSS v4.0 · 4 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 13, 2026	Reserved	Reserved by OpenVPN
June 8, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-35058 (OpenVPN). Public exploit reference added.
June 8, 2026	Published	Published (CNA: OpenVPN)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
OpenVPN	OpenVPN	—	2.6.0	—

Weaknesses

CWE-617

References (4)

https://community.openvpn.net/ReleaseHistory#openvpn-2620-released-22-april-2026 [Release Notes]
https://community.openvpn.net/ReleaseHistory#openvpn-272-released-22-april-2026 [Release Notes]
https://community.openvpn.net/Security%20Announcements/CVE-2026-35058 [Vendor Advisory]
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2381 [Exploit, Mitigation, Third Party Advisory]

Authoritative record: CVE-2026-35058 at cve.org

Vendors: openvpn

Weaknesses: CWE-617

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-35058 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, August 20, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.