CVE-2026-11771

Publication date 3 July 2026

Last updated 8 July 2026


Ubuntu priority

Description

1-byte buffer overrun on NTLMv2 proxy responses

Read the notes from the security team

Status

Package Ubuntu Release Status
openvpn 26.04 LTS resolute
Needs evaluation
25.10 questing
Needs evaluation
24.04 LTS noble
Needs evaluation
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes


mdeslaur

introduced by: https://github.com/OpenVPN/openvpn/commit/6e010d4824b7251d817cf1770e80f186000b99ae jammy and earlier already have an adequate check, so are not vulnerable.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openvpn

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