Medium severity5.3NVD Advisory· Published Jul 4, 2017· Updated Jun 17, 2026
CVE-2017-6721
CVE-2017-6721
Description
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).
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- cpe:2.3:a:cisco:wide_area_application_services:6.3\(1\):*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- www.securityfocus.com/bid/99200nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1038747nvdThird Party AdvisoryVDB Entry
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-waasnvdVendor Advisory
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