CVE-2006-0377

CRLF injection vulnerability in SquirrelMail 1.4.0 to 1.4.5 allows remote attackers to inject arbitrary IMAP commands via newline characters in the mailbox parameter of the sqimap_mailbox_select command, aka "IMAP injection."

Published: 2006-02-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-0377 is rated Moderate Risk (48.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.30%). Review affected assets and schedule 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-2006-0377

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 1.77% 2.30% +0.52%
2 2025-12-28 1.50% 1.77% +0.28%
3 2025-12-27 — 1.50% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-0377

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N 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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2006-0377

OS Trackers for CVE-2006-0377

vendor priority summary link
gentoo low CVE-2006-0377: 1 GLSA(s) (200603-09), 1 atom(s) (mail-client/squirrelmail); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-0377
redhat medium — https://access.redhat.com/security/cve/CVE-2006-0377
ubuntu medium CVE-2006-0377 medium priority: Ubuntu including 1 source packages (squirrelmail), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2006-0377

Affected software / configurations for CVE-2006-0377

Vendor Product Version Raw CPE
squirrelmail squirrelmail 1.4 cpe:2.3:a:squirrelmail:squirrelmail:1.4:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.2 cpe:2.3:a:squirrelmail:squirrelmail:1.4.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.3 cpe:2.3:a:squirrelmail:squirrelmail:1.4.3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.3_r3 cpe:2.3:a:squirrelmail:squirrelmail:1.4.3_r3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.3_rc1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.3_rc1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.3a cpe:2.3:a:squirrelmail:squirrelmail:1.4.3a:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.4 cpe:2.3:a:squirrelmail:squirrelmail:1.4.4:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.4_rc1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.4_rc1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.5 cpe:2.3:a:squirrelmail:squirrelmail:1.4.5:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.6_rc1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.6_rc1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4_rc1 cpe:2.3:a:squirrelmail:squirrelmail:1.4_rc1:*:*:*:*:*:*:*

References for CVE-2006-0377

URL Tags
ftp://patches.sgi.com/support/free/security/advisories/20060501-01-U.asc
http://secunia.com/advisories/18985 Vendor Advisory
http://secunia.com/advisories/19130
http://secunia.com/advisories/19131
http://secunia.com/advisories/19176
http://secunia.com/advisories/19205
http://secunia.com/advisories/19960
http://secunia.com/advisories/20210
http://securitytracker.com/id?1015662 Patch
http://www.debian.org/security/2006/dsa-988
http://www.gentoo.org/security/en/glsa/glsa-200603-09.xml
http://www.mandriva.com/security/advisories?name=MDKSA-2006:049
http://www.novell.com/linux/security/advisories/2006_05_sr.html
http://www.redhat.com/archives/fedora-announce-list/2006-March/msg00004.html
http://www.redhat.com/support/errata/RHSA-2006-0283.html
http://www.securityfocus.com/bid/16756
http://www.squirrelmail.org/security/issue/2006-02-15 Patch
http://www.vupen.com/english/advisories/2006/0689
https://exchange.xforce.ibmcloud.com/vulnerabilities/24849
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11470
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