CVE-2007-3803

Name: CVE-2007-3803
Creator: NVD / NIST
Published: 2007-07-16T23:30:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.26%

Last modified Jun 16, 2026

CVE-2007-3803 is a vulnerability of currently unknown severity. The SMTP ALG in Clavister CorePlus before 8.80.04, and 8.81.00, does not properly parse SMTP commands in certain circumstances, which allows remote attackers to bypass address blacklists.. EPSS estimates a 2.26% chance of exploitation in the next 30 days.

Description

The SMTP ALG in Clavister CorePlus before 8.80.04, and 8.81.00, does not properly parse SMTP commands in certain circumstances, which allows remote attackers to bypass address blacklists.

Metrics

EPSS Probability

2.26%

80.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Clavister	Clavister Coreplus	<= 8.80.03
Clavister	Clavister Coreplus	<= 8.81.00

References

Timeline

Published: Jul 16, 2007
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-3803?

The SMTP ALG in Clavister CorePlus before 8.80.04, and 8.81.00, does not properly parse SMTP commands in certain circumstances, which allows remote attackers to bypass address blacklists.

How severe is CVE-2007-3803?

Severity scoring for CVE-2007-3803 is pending analysis. The EPSS model estimates a 2.26% probability of exploitation in the next 30 days.

How do I fix CVE-2007-3803?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-3803?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST