CVE-2009-1381

No known exploitation. EPSS puts it in the 87th percentile. A vendor fix is available.

CVSS 2.06.8Medium EPSS percentile87th2.9% chance in 30 days CISA KEVNot listedNo confirmed exploitation
No public exploit known FixVendor fixNo build named by the sources

Published 2009-05-22Updated 2026-04-23Sources: CVE.org, NVD

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.19-1 on Debian GNU/Linux, and possibly other operating systems and versions, allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program. NOTE: this issue exists because of an incomplete fix for CVE-2009-1579.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS87th

CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

2.9% chance of exploitation activity in the next 30 days, which ranks it in the 87th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

5 events over 6243 days, from the signal feeds we watch.

2026-06-25OpenVAS check added
2026-04-23Patch availablerecord updated
2009-05-22Publishedweakness classified

Affected products

squirrelmailoss-project
- imap general.phpOn-premCommunications / email-server-client
- squirrelmailWeb AppOn-premCommunications / messaging-chat

And 1 more affected product. See all after sign-in

Technical detail

CVSS 2.0 vector

Open in the CVSS calculator

AV:N/AC:M/Au:N/C:P/I:P/A:P

Scored 6.8 by NVD.

How it is reached

Access Vector NetworkExploitable remotely over the network
Access Complexity MediumSome conditions must be met
Authentication NoneNo authentication required

Impact if exploited

Confidentiality PartialSome information is disclosed
Integrity PartialSome data can be modified
Availability PartialReduced performance or service disruption

Weaknesses

NVD-CWE-OtherNo name in the record

Sources

References in the record

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