Is CVE-2016-5008 in the CISA KEV catalog?

No. CVE-2016-5008 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-5008?

CVE-2016-5008 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2016-5008?

CVE-2016-5008 has an EPSS score of 3.62% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-5008?

Upgrade libvirt on debian 11 to 2.0.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2016-5008

CRITICALEPSS 88th pctl

9.8

CVSS v3

NVD

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.

CWE-284Improper Access Control

How to fix

Remediation Available

libvirtDebian

Fixed in:2.0.0-1CVE-2016-5008

libvirtUbuntu

Fixed in:1.2.2-0ubuntu13.1.26USN-3576-1

Fixed in:1.3.1-1ubuntu10.19USN-3576-1

libvirt-binUbuntu

Fixed in:1.2.2-0ubuntu13.1.26USN-3576-1

Fixed in:1.3.1-1ubuntu10.19USN-3576-1

libvirt0Ubuntu

Fixed in:1.2.2-0ubuntu13.1.26USN-3576-1

Fixed in:1.3.1-1ubuntu10.19USN-3576-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.62%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Vendor Advisory1

security.libvirt.org

Other references10

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.