Improper input validation in Cisco Wide Area Application Services
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 Server Message Block (SMB) protocol of Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device due to a process restarting unexpectedly and creating Core Dump files. More Information: CSCvc63035. Known Affected Releases: 6.2(3a). Known Fixed Releases: 6.3(0.167) 6.2(3c)5 6.2(3.22).
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco Wide Area Application Services | Cisco Wide Area Application Services | — | No fix listed | CNA |
- Cisco Wide Area Application Services Vendor— Affected Cisco Wide Area Application Services Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-6727
- 2026-10-03 Alias added: GHSA-vjfw-78fc-xj4h
References
More Cisco Wide Area Application Services vulnerabilities
- 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
Sources
- CVE-2017-6727 · CVE Program
- CVE-2017-6727 · NVD
- FIRST EPSS
- GHSA-vjfw-78fc-xj4h · GitHub Advisory Database · CC BY 4.0
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