CVE-2011-0011

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows...

4.3 MediumFix available

CVE-2011-0011 is a medium vulnerability (CVSS 4.3) in Qemu, published May 1, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. Fixed in qemu-img 2:0.12.1.2-2.113.el6_0.8.

What does this mean?

Severity: 4.3 MediumCVSS 2.0, NVD
Exploit chance: 1.29%EPSS, 70th percentile
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: 2:0.12.1.2-2.113.el6_0.8qemu-img +16 more

Description

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions.

Exploit likelihood

1.29%Down 0.9 points since Feb 4, 2022

Affected products

qemu

Affected packages

Affected packages
Package	Affected	Fixed
`qemu-kvm` Debian:6.0 From an advisory covering 2 CVEs	before 0.12.5+dfsg-5+squeeze1, plus listed versions 0.12.5+dfsg-5	0.12.5+dfsg-5+squeeze1
`qemu-img` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-tools` Red Hat:enterprise_linux:6::client	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-img` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-tools` Red Hat:enterprise_linux:6::computenode	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-img` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8

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Affected packages
Package	Affected	Fixed
`qemu-kvm` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-tools` Red Hat:enterprise_linux:6::server	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-img` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-debuginfo` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8
`qemu-kvm-tools` Red Hat:enterprise_linux:6::workstation	before 2:0.12.1.2-2.113.el6_0.8	2:0.12.1.2-2.113.el6_0.8

What each source reports

NVD Score used4.3

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions.

Record: CVE-2011-0011
CVSS 2.0: 4.3 MediumAV:A/AC:H/Au:N/C:P/I:P/A:P
Weakness: CWE-287
Updated: 2026-11-02

CVE ListNo score

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions.

Record: CVE-2011-0011
Updated: 2026-11-02

EUVDEUVD-2011-0038No score

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions.

Record: EUVD-2011-0038
Updated: 2026-11-03

GitHub AdvisoriesGHSA-x485-7p7r-jxj7No score

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows...

qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions.

Record: GHSA-x485-7p7r-jxj7
Weakness: CWE-287
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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