CVE-2007-3923

Name: CVE-2007-3923
Creator: NVD / NIST
Published: 2007-07-21T00:30:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.98%

Last modified Jun 16, 2026

CVE-2007-3923 is a vulnerability of currently unknown severity. The Common Internet File System (CIFS) optimization in Cisco Wide Area Application Services (WAAS) 4.0.7 and 4.0.9, as used by Cisco WAE appliance and the NM-WAE-502 network module, when Edge Services are configured, allows remote attackers to cause a denial of service (loss of service) via a flood of TCP SYN packets to port (1) 139 or (2) 445.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

The Common Internet File System (CIFS) optimization in Cisco Wide Area Application Services (WAAS) 4.0.7 and 4.0.9, as used by Cisco WAE appliance and the NM-WAE-502 network module, when Edge Services are configured, allows remote attackers to cause a denial of service (loss of service) via a flood of TCP SYN packets to port (1) 139 or (2) 445.

Metrics

EPSS Probability

1.98%

78.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Wide Area Application Services	4.0.7
Cisco	Wide Area Application Services	4.0.9

References

Timeline

Published: Jul 21, 2007
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-3923?

How severe is CVE-2007-3923?

Severity scoring for CVE-2007-3923 is pending analysis. The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2007-3923?

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-2007-3923?

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

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Source: NVD / NIST