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Fencer Intel
medium 6.5

CVE-2011-2166 json

script-login in Dovecot 2.0.x before 2.0.13 does not follow the user and group configuration settings, which might allow remote authenticat…

published 2011-05-24 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2158

cvss
6.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

script-login in Dovecot 2.0.x before 2.0.13 does not follow the user and group configuration settings, which might allow remote authenticated users to bypass intended access restrictions by leveraging a script.

Patch / fix

  • dovecot Debian 14, Debian 13, Debian 12 1:2.0.13-1

debian advisories DEBIAN-CVE-2011-2166

  • dovecot RHEL 6 1:2.0.9-5.el6
  • dovecot-mysql RHEL 6 1:2.0.9-5.el6
  • dovecot-pgsql RHEL 6 1:2.0.9-5.el6
  • dovecot-pigeonhole RHEL 6 1:2.0.9-5.el6

red hat advisories RHSA-2013:0520

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-2011-2166 updated cvss 3.6

dovecot: authenticated remote bypass of intended access restrictions

  • Red Hat Enterprise Linux Server (v. 6) dovecot 2.0.9-5.el6, dovecot-mysql 2.0.9-5.el6, dovecot-pgsql 2.0.9-5.el6, dovecot-pigeonhole 2.0.9-5.el6 Red Hat Enterprise Linux Server Optional (v. 6) dovecot 2.0.9-5.el6 Red Hat Enterprise Linux Workstation (v. 6) dovecot 2.0.9-5.el6, dovecot-mysql 2.0.9-5.el6, dovecot-pgsql 2.0.9-5.el6, dovecot-pigeonhole 2.0.9-5.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) dovecot 2.0.9-5.el6
    fixed: vendor fix RHSA-2013:0520
  • Red Hat Enterprise Linux 4 dovecot Red Hat Enterprise Linux 5 dovecot
    not affected: vulnerable code not present

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

2.01% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness

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.