CVE-2006-3242

Stack-based buffer overflow in the browse_get_namespace function in imap/browse.c of Mutt 1.4.2.1 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via long namespaces received from the IMAP server.

Published: 2006-06-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2006-3242 is rated Moderate Risk (60.6/100): CVSS High severity, with high exploitation likelihood (EPSS 5.89%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-3242

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 7.54% 5.89% -1.65%
2 2025-06-22 6.30% 7.54% +1.24%
3 2025-03-30 6.30%

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-3242

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2006-3242

OS Trackers for CVE-2006-3242

vendor priority summary link
debian low CVE-2006-3242 low priority: Debian including 1 source packages (mutt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2006-3242
gentoo normal CVE-2006-3242: 1 GLSA(s) (200606-27), 1 atom(s) (mail-client/mutt); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-3242
redhat medium https://access.redhat.com/security/cve/CVE-2006-3242
ubuntu medium CVE-2006-3242 medium priority: Ubuntu including 1 source packages (mutt), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2006-3242

Affected software / configurations for CVE-2006-3242

Vendor Product Version Raw CPE
mutt mutt 1.4.2 cpe:2.3:a:mutt:mutt:1.4.2:*:*:*:*:*:*:*
mutt mutt 1.4.2.1 cpe:2.3:a:mutt:mutt:1.4.2.1:*:*:*:*:*:*:*

References for CVE-2006-3242

URL Tags
ftp://patches.sgi.com/support/free/security/advisories/20060701-01-U
http://dev.mutt.org/cgi-bin/gitweb.cgi?p=mutt/.git%3Ba=commit%3Bh=dc0272b749f0e2b102973b7ac43dbd3908507540
http://dev.mutt.org/cgi-bin/viewcvs.cgi/mutt/imap/browse.c?r1=1.34.2.2&r2=1.34.2.3
http://secunia.com/advisories/20810 Vendor Advisory
http://secunia.com/advisories/20836
http://secunia.com/advisories/20854
http://secunia.com/advisories/20879
http://secunia.com/advisories/20887
http://secunia.com/advisories/20895
http://secunia.com/advisories/20960
http://secunia.com/advisories/21039
http://secunia.com/advisories/21124
http://secunia.com/advisories/21135
http://secunia.com/advisories/21220
http://securitytracker.com/id?1016482
http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.472221
http://www.debian.org/security/2006/dsa-1108
http://www.gentoo.org/security/en/glsa/glsa-200606-27.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2006:115
http://www.novell.com/linux/security/advisories/2006_16_sr.html
http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.013-mutt.html
http://www.redhat.com/support/errata/RHSA-2006-0577.html
http://www.securityfocus.com/archive/1/438712/100/0/threaded
http://www.securityfocus.com/bid/18642
http://www.trustix.org/errata/2006/0038
http://www.vupen.com/english/advisories/2006/2522
https://exchange.xforce.ibmcloud.com/vulnerabilities/27428
https://issues.rpath.com/browse/RPL-471
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10826
https://usn.ubuntu.com/307-1/
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