4.3

CVE-2011-0011: qemu Improper Authentication

Modified
AliasesRHSA-2011:0345
Published 21-06-2012Last modified 06-08-2024

Vulnerability summary

CVE-2011-0011 is a medium (CVSS 4.3) Improper Authentication vulnerability in qemu. EPSS estimates a 1.29% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
1.29%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DSA-2230-1

Timeline

  1. 21-06-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.29%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

Decrease -0.02 pp

From 1.31% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication (CVSS vector). Other conditions: not stated in public data.

Redhat4 products
  • qemu-img< 2:0.12.1.2-2.113.el6_0.8
  • qemu-kvm< 2:0.12.1.2-2.113.el6_0.8
  • qemu-kvm-debuginfo< 2:0.12.1.2-2.113.el6_0.8
  • qemu-kvm-tools< 2:0.12.1.2-2.113.el6_0.8
Qemu1 product
  • qemu≤ 0.11.0 | 0.1.0 | 0.1.1 | 0.1.2 | 0.1.3 | 0.1.4 | 0.1.5 | 0.1.6 | 0.10.0 | 0.10.1 | 0.10.2 | 0.10.3 | 0.10.4 | 0.10.5 | 0.10.6 | 0.11.0:rc0 | 0.11.0:rc1

2 vendors · 5 products

References

19 links
Show all 19 references