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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2026-11771

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to potentially cause a crash via

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Status
Published
Published
Updated
Assigning organization
OpenVPN

Description

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to potentially cause a crash via a crafted NTLM response from a malicious proxy server

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

OpenVPN OpenVPN

Default version status: unaffected

  • 2.1.0 to ≤ 2.6.20affected
  • 2.7_alpha1 to ≤ 2.7.4affected

References