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TI-2017-04477 Aliases CVE-2017-6721GHSA-w93q-4q5r-8jfj

Improper input validation in Cisco Wide Area Application Services

Priority LOW 28CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

A vulnerability in the ingress processing of fragmented TCP packets by Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause the WAASNET process to restart unexpectedly, causing a denial of service (DoS) condition. More Information: CSCvc57428. Known Affected Releases: 6.3(1). Known Fixed Releases: 6.3(0.143) 6.2(3c)6 6.2(3.22).

Why it matters now

EPSS 0.02197 82nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cisco Wide Area Application ServicesCisco Wide Area Application Services—No fix listedCNA
  • Cisco Wide Area Application Services Vendor— Affected Cisco Wide Area Application Services Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:wide_area_application_services:6.3\(1\):*:*:*:*:*:*:*6.3(1)VulnerableCisco
  • cpe:2.3:a:cisco:wide_area_application_services:6.3\(1\):*:*:*:*:*:*:* Versions 6.3(1) Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-6721
  2. 2026-10-03 Alias added: GHSA-w93q-4q5r-8jfj

References

Advisory 1

  • TI-2013-03008 The web service framework in Cisco WAAS Software 4.x and 5.x before 5.0.3e, 5.1.x before… CVSS 2.0HIGH 10.0
  • TI-2013-03009 The web framework in Cisco WAAS Software before 4.x and 5.x before 5.0.3e, 5.1.x before… CVSS 2.0HIGH 9.0
  • TI-2014-01739 Cisco Wide Area Application Services (WAAS) 5.1.1 before 5.1.1e, when SharePoint prefetch… CVSS 2.0HIGH 9.3
  • TI-2007-03800 The Common Internet File System (CIFS) optimization in Cisco Wide Area Application… CVSS 2.0HIGH 7.8
  • TI-2015-05404 cifs-ao in the CIFS optimization functionality on Cisco Wide Area Application Service… CVSS 3.0HIGH 7.5
  • TI-2018-00288 Hard-coded credentials in Cisco Wide Area Application Services unknown CVSS 3.1MEDIUM 5.3
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences