CVE-2011-1429

mediumpriority · track · 24EPSS 0.015 · 74 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.47% (74th) EPSS

CVSS 5.8 · medium

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-28

Mutt does not verify that the smtps server hostname matches the domain name of the subject of an X.509 certificate, which allows man-in-the-middle attackers to spoof an SSL SMTP server via an arbitrary certificate, a different vulnerability than CVE-2009-3766.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedmutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.src as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959
Fixedmutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0959

cvss

Technical severity, 0–10. One row per scoring source.

5.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v2.04.9mediumAV:N/AC:M/Au:N/C:P/I:P/A:N/E:Usecondary · CVSS-BT (t0sche)

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (11)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
mutt muttall versionsnvdUScpe:2.3:a:mutt:mutt:*:*:*:*:*:*:*:*
mutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.src as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-5:1.5.20-2.20091214hg736b6a.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
mutt-debuginfo-5:1.5.20-2.20091214hg736b6a.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS

advisories (1)

Vendor and ecosystem advisories describing this.

RHSA-2011:0959Red Hat Security Advisory: mutt security update2011-07-19csaf · redhat_csafUS
An updated mutt package that fixes one security issue is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

published 2011-03-16modified 2026-06-16

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+25198 more

references (21)

External citations — patches, advisories, analysis.

scry

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