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Fencer Intel
low 3.3

CVE-2011-1486 json

libvirtd in libvirt before 0.9.0 does not use thread-safe error reporting, which allows remote attackers to cause a denial of service (cras…

published 2011-05-31 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1489

cvss
3.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

libvirtd in libvirt before 0.9.0 does not use thread-safe error reporting, which allows remote attackers to cause a denial of service (crash) by causing multiple threads to report errors at the same time.

Patch / fix

  • libvirt Debian 14, Debian 13, Debian 12 0.9.0-1

debian advisories DEBIAN-CVE-2011-1486

  • libvirt RHEL 6 0.8.1-27.el6_0.6
  • libvirt-client RHEL 6 0.8.1-27.el6_0.6
  • libvirt-python RHEL 6 0.8.1-27.el6_0.6
  • libvirt RHEL 5 VIRTUALIZATION 0.8.2-15.el5_6.4
  • libvirt-python RHEL 5 VIRTUALIZATION 0.8.2-15.el5_6.4

red hat advisories RHSA-2011:0479RHSA-2011:0478

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-1486 updated cvss 3.3

libvirt: error reporting in libvirtd is not thread safe

  • Red Hat Enterprise Linux 5 libvirt
    affected: no fix available
  • Red Hat Enterprise Linux Desktop (v. 6) libvirt 0.8.1-27.el6_0.6, libvirt-client 0.8.1-27.el6_0.6, libvirt-python 0.8.1-27.el6_0.6 Red Hat Enterprise Linux Desktop Optional (v. 6) libvirt 0.8.1-27.el6_0.6 Red Hat Enterprise Linux HPC Node (v. 6) libvirt 0.8.1-27.el6_0.6, libvirt-client 0.8.1-27.el6_0.6, libvirt-python 0.8.1-27.el6_0.6 Red Hat Enterprise Linux HPC Node Optional (v. 6) libvirt 0.8.1-27.el6_0.6 Red Hat Enterprise Linux Server (v. 6) libvirt 0.8.1-27.el6_0.6, libvirt-client 0.8.1-27.el6_0.6, libvirt-python 0.8.1-27.el6_0.6 Red Hat Enterprise Linux Workstation (v. 6) libvirt 0.8.1-27.el6_0.6, libvirt-client 0.8.1-27.el6_0.6, libvirt-python 0.8.1-27.el6_0.6
    fixed: vendor fix RHSA-2011:0479
  • Red Hat RHEL Virtualization (v. 5 server) libvirt 0.8.2-15.el5_6.4, libvirt-python 0.8.2-15.el5_6.4
    fixed: vendor fix RHSA-2011:0478

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 3.3 AV:A/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.