Is CVE-2003-0990 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2003-0990 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2003-0990?

Public exploit code is available.

Is there a fix for CVE-2003-0990?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2003-0990 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

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Emerging threatsHigh

CVE-2003-0990

The parseAddress code in (1) SquirrelMail 1.4.0 and (2) GPG Plugin 1.1 allows remote attackers to execute commands via shell metacharacters in the "To:" field.

Published Jan 20, 2004 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2003-0990 is a high-severity vulnerability (CVSS 7.5 v2).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 29% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

7.5

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

EPSS (30-day exploit likelihood)

29%

Higher than 98.1% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

51/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisory9296

Description

The parseAddress code in (1) SquirrelMail 1.4.0 and (2) GPG Plugin 1.1 allows remote attackers to execute commands via shell metacharacters in the "To:" field.

Timeline

Publicly disclosed
Jan 20, 2004
Last updated
Apr 15, 2026

References

advisory9296
exploitMSF squirrelmail_pgp_plugin.rb
exploitExploitDB-16888
exploit20031226 Re: Reported Command Injection in Squirrelmail GPG
other20031224 Bugtraq Security Systems ADV-0001

2 more references in the full CVE brief

FAQ

Common Questions.

The parseAddress code in (1) SquirrelMail 1.4.0 and (2) GPG Plugin 1.1 allows remote attackers to execute commands via shell metacharacters in the "To:" field.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2003-0990 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.