VIR Vulnerability Intelligence Relay

CVE-2016-5008

critical
Published 2016-07-13 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
9.8

Description

libvirt before 2.0.0 improperly disables password checking when the password on a VNC server is set to an empty string, which allows remote attackers to bypass authentication and establish a VNC session by connecting to the server.

Predictions

Exploit likelihood
97%
Patch ETA
—

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 — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → 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
— Affected —
debian Debian Mixed 6 releases
VersionStatusFixed in
trixie Fixed 2.0.0-1
sid Fixed 2.0.0-1
forky Fixed 2.0.0-1
bullseye Fixed 2.0.0-1
bookworm Fixed 2.0.0-1
8.0 Affected —

Application impact
VendorProductVersionsFixed
redhat redhatlibvirt{"endIncluding":"1.3.5"}

References

CWEs

CWE-284

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

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