CVE-2009-1579

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail before 1.7 allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program.

Published: 2009-05-14 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1579 is rated Moderate Risk (57.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.40%). 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-2009-1579

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 3.60% 3.40% -0.20%
2 2026-02-10 3.50% 3.60% +0.09%
3 2025-12-31 — 3.50% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1579

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2009-1579

OS Trackers for CVE-2009-1579

vendor priority summary link
gentoo high CVE-2009-1579: 1 GLSA(s) (201001-08), 1 atom(s) (mail-client/squirrelmail); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-1579
redhat high — https://access.redhat.com/security/cve/CVE-2009-1579
ubuntu medium CVE-2009-1579 medium priority: Ubuntu including 1 source packages (squirrelmail), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): released 4, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2009-1579

Affected software / configurations for CVE-2009-1579

Vendor Product Version Raw CPE
squirrelmail squirrelmail — cpe:2.3:a:squirrelmail:squirrelmail:*:*:*:*:*:*:*:*
squirrelmail squirrelmail <= 1.4.17 cpe:2.3:a:squirrelmail:squirrelmail:*:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.1 cpe:2.3:a:squirrelmail:squirrelmail:0.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.1.1 cpe:2.3:a:squirrelmail:squirrelmail:0.1.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.1.2 cpe:2.3:a:squirrelmail:squirrelmail:0.1.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.2 cpe:2.3:a:squirrelmail:squirrelmail:0.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.2.1 cpe:2.3:a:squirrelmail:squirrelmail:0.2.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.3 cpe:2.3:a:squirrelmail:squirrelmail:0.3:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.3.1 cpe:2.3:a:squirrelmail:squirrelmail:0.3.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.3pre1 cpe:2.3:a:squirrelmail:squirrelmail:0.3pre1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.3pre2 cpe:2.3:a:squirrelmail:squirrelmail:0.3pre2:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.4 cpe:2.3:a:squirrelmail:squirrelmail:0.4:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.4pre1 cpe:2.3:a:squirrelmail:squirrelmail:0.4pre1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.4pre2 cpe:2.3:a:squirrelmail:squirrelmail:0.4pre2:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.5 cpe:2.3:a:squirrelmail:squirrelmail:0.5:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.5pre1 cpe:2.3:a:squirrelmail:squirrelmail:0.5pre1:*:*:*:*:*:*:*
squirrelmail squirrelmail 0.5pre2 cpe:2.3:a:squirrelmail:squirrelmail:0.5pre2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0 cpe:2.3:a:squirrelmail:squirrelmail:1.0:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0.1 cpe:2.3:a:squirrelmail:squirrelmail:1.0.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0.2 cpe:2.3:a:squirrelmail:squirrelmail:1.0.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0.3 cpe:2.3:a:squirrelmail:squirrelmail:1.0.3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0.4 cpe:2.3:a:squirrelmail:squirrelmail:1.0.4:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0.5 cpe:2.3:a:squirrelmail:squirrelmail:1.0.5:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0.6 cpe:2.3:a:squirrelmail:squirrelmail:1.0.6:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0pre1 cpe:2.3:a:squirrelmail:squirrelmail:1.0pre1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0pre2 cpe:2.3:a:squirrelmail:squirrelmail:1.0pre2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.0pre3 cpe:2.3:a:squirrelmail:squirrelmail:1.0pre3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.1.0 cpe:2.3:a:squirrelmail:squirrelmail:1.1.0:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.1.1 cpe:2.3:a:squirrelmail:squirrelmail:1.1.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.1.2 cpe:2.3:a:squirrelmail:squirrelmail:1.1.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.1.3 cpe:2.3:a:squirrelmail:squirrelmail:1.1.3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2 cpe:2.3:a:squirrelmail:squirrelmail:1.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.0 cpe:2.3:a:squirrelmail:squirrelmail:1.2.0:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.0_rc3 cpe:2.3:a:squirrelmail:squirrelmail:1.2.0_rc3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.1 cpe:2.3:a:squirrelmail:squirrelmail:1.2.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.2 cpe:2.3:a:squirrelmail:squirrelmail:1.2.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.3 cpe:2.3:a:squirrelmail:squirrelmail:1.2.3:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.4 cpe:2.3:a:squirrelmail:squirrelmail:1.2.4:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.5 cpe:2.3:a:squirrelmail:squirrelmail:1.2.5:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.6 cpe:2.3:a:squirrelmail:squirrelmail:1.2.6:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.7 cpe:2.3:a:squirrelmail:squirrelmail:1.2.7:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.8 cpe:2.3:a:squirrelmail:squirrelmail:1.2.8:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.9 cpe:2.3:a:squirrelmail:squirrelmail:1.2.9:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.10 cpe:2.3:a:squirrelmail:squirrelmail:1.2.10:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.2.11 cpe:2.3:a:squirrelmail:squirrelmail:1.2.11:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.3.0 cpe:2.3:a:squirrelmail:squirrelmail:1.3.0:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.3.1 cpe:2.3:a:squirrelmail:squirrelmail:1.3.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.3.2 cpe:2.3:a:squirrelmail:squirrelmail:1.3.2:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4 cpe:2.3:a:squirrelmail:squirrelmail:1.4:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.0 cpe:2.3:a:squirrelmail:squirrelmail:1.4.0:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.0_rc1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.0_rc1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.0_rc2a cpe:2.3:a:squirrelmail:squirrelmail:1.4.0_rc2a:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.10 cpe:2.3:a:squirrelmail:squirrelmail:1.4.10:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.10a cpe:2.3:a:squirrelmail:squirrelmail:1.4.10a:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.11 cpe:2.3:a:squirrelmail:squirrelmail:1.4.11:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.12 cpe:2.3:a:squirrelmail:squirrelmail:1.4.12:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.15 cpe:2.3:a:squirrelmail:squirrelmail:1.4.15:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.15_rc1 cpe:2.3:a:squirrelmail:squirrelmail:1.4.15_rc1:*:*:*:*:*:*:*
squirrelmail squirrelmail 1.4.16 cpe:2.3:a:squirrelmail:squirrelmail:1.4.16:*:*:*:*:*:*:*

References for CVE-2009-1579

URL Tags
http://download.gna.org/nasmail/nasmail-1.7.zip
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html
http://secunia.com/advisories/35052 Vendor Advisory
http://secunia.com/advisories/35073 Vendor Advisory
http://secunia.com/advisories/35140
http://secunia.com/advisories/35259
http://secunia.com/advisories/37415
http://secunia.com/advisories/40220
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail/branches/SM-1_4-STABLE/squirrelmail/doc/ChangeLog Patch
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail/branches/SM-1_4-STABLE/squirrelmail/functions/imap_general.php?r1=13674&r2=13673&pathrev=13674 Patch
http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail?view=rev&revision=13674 Patch
http://support.apple.com/kb/HT4188
http://www.debian.org/security/2009/dsa-1802
http://www.mandriva.com/security/advisories?name=MDVSA-2009:110 Patch
http://www.redhat.com/support/errata/RHSA-2009-1066.html
http://www.securityfocus.com/bid/34916 Patch
http://www.squirrelmail.org/security/issue/2009-05-10 Patch Vendor Advisory
http://www.vupen.com/english/advisories/2009/1296 Patch Vendor Advisory
http://www.vupen.com/english/advisories/2009/3315
http://www.vupen.com/english/advisories/2010/1481
https://bugzilla.redhat.com/show_bug.cgi?id=500360
https://exchange.xforce.ibmcloud.com/vulnerabilities/50461
https://gna.org/forum/forum.php?forum_id=2146
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10986
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00566.html Patch
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00572.html
https://www.redhat.com/archives/fedora-package-announce/2009-May/msg00577.html Patch
cvelogic Threat Intelligence