UnratedFix available
ALPINE-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 a crafted NTLM response from a malicious proxy server
Announced Group revision 1
Original source ↗ALPINE-CVE-2026-11771
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:ALPINE-CVE-2026-11771
openvpn
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 2.7.5-r0
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.7.5-r0"
}
]
}
],
"package": {
"name": "openvpn",
"purl": "pkg:apk/alpine/openvpn?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-11771.json"
},
"ecosystem_specific": {}
}
]Publisher severity
No explicit severity was provided.
- Event
- #52187 · Revision 1
- Added to Heist Feed
- Publisher date