CVE-2017-6721

Severity: medium (CVSS 5.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-07-04 · updated 2026-06-17
Weakness: CWE-20

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).

Affected products

Cisco Wide Area Application Services: 6.3(1)

References

http://www.securityfocus.com/bid/99200
http://www.securitytracker.com/id/1038747
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-waas
http://www.securityfocus.com/bid/99200
http://www.securitytracker.com/id/1038747
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-waas

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