CVE-2017-12166

critical
Published 2017-10-04 ยท Modified 2026-05-13
CVSS v3
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.8

Description

OpenVPN versions before 2.3.3 and 2.4.x before 2.4.4 are vulnerable to a buffer overflow vulnerability when key-method 1 is used, possibly resulting in code execution.

Predictions

Exploit likelihood
97%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

suse SUSE Affected 1 release
VersionStatusFixed in
โ€” Affected โ€”
debian Debian Mixed 6 releases
VersionStatusFixed in
trixie Fixed 2.4.4-1
sid Fixed 2.4.4-1
forky Fixed 2.4.4-1
bullseye Fixed 2.4.4-1
bookworm Fixed 2.4.4-1
9.0 Affected โ€”
arch Arch Fixed 1 release
VersionStatusFixed in
โ€” Fixed 2.4.4-1

Application impact

VendorProductVersionsFixed
openvpnopenvpn{"endExcluding":"2.3.18"}2.3.18

References

CWEs

CWE-787

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.