CVE-2007-3923: n/a vulnerability

CVE-2007-3923: The Common Internet File System (CIFS) optimization in Cisco Wide Area Application Services (WAAS) 4.0.7 an...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 14:37 UTC (UTC+00:00)

Security readout for executives and security teams

This issue can let a remote attacker disrupt Cisco WAAS file-sharing optimization services by overwhelming exposed CIFS-related ports when Edge Services are enabled. The provided sources describe service loss, not data theft or code execution. Exposure is most likely where legacy Cisco WAAS 4.0.7 or 4.0.9 systems still run Edge Services and accept traffic to TCP 139 or 445 from untrusted or broad network ranges. Treat this as a legacy infrastructure availability risk. Prioritize remediation if WAAS still supports business file access across WAN links, especially where SMB/CIFS ports are broadly reachable. Mitigation focus: Review Cisco’s vendor advisory for fixed software or supported workarounds.; Restrict TCP 139 and 445 access to trusted internal sources only.; Disable Edge Services where they are not operationally required..

Prepared: Jun 29, 2026, 04:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 21, 2007, 00:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
cisco-waas-edgeservice-dos(35477)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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