CVE-2009-1579

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail...

6.8 MediumFix available

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.

Exploit likelihood

3.40%Down 0.5 points since Feb 4, 2022

What each source reports

NVD Score used 6.8

Record: CVE-2009-1579
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-94
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-1579
Updated: 2026-11-02

EUVDEUVD-2009-1575 No score

Record: EUVD-2009-1575
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gff5-24h3-hxcw No score

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.18 and NaSMail...

Record: GHSA-gff5-24h3-hxcw
Weakness: CWE-94
Updated: 2026-11-02

Affected products

squirrelmail

Affected packages

Affected packages
Package	Affected	Fixed
`squirrelmail` Debian:4.0	before 2:1.4.9a-4, plus listed versions 2:1.4.9a-12:1.4.9a-22:1.4.9a-3	2:1.4.9a-4
`squirrelmail` Debian:5.0	before 2:1.4.15-4+lenny1, plus listed versions 2:1.4.15-4	2:1.4.15-4+lenny1
`squirrelmail` Red Hat:enterprise_linux:3::as	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:3::desktop	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:3::es	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:3::ws	before 0:1.4.8-13.el3	0:1.4.8-13.el3
`squirrelmail` Red Hat:enterprise_linux:4::as	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:4::desktop	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:4::es	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:4::ws	before 0:1.4.8-5.el4_8.5	0:1.4.8-5.el4_8.5
`squirrelmail` Red Hat:enterprise_linux:5::client_workstation	before 0:1.4.8-5.el5_3.7	0:1.4.8-5.el5_3.7
`squirrelmail` Red Hat:enterprise_linux:5::server	before 0:1.4.8-5.el5_3.7	0:1.4.8-5.el5_3.7

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-1579 is a medium vulnerability (CVSS 6.8) in Squirrelmail, published May 14, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.40%, the 88th percentile. Fixed in squirrelmail 2:1.4.9a-4.

References

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