What’s Vulnerable › Vulnerabilities

CVE-2016-6407

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-09-17 · updated 2026-06-17
• Weakness: CWE-399

Description

Cisco AsyncOS through 9.5.0-444 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (link saturation) by making many HTTP requests for overlapping byte ranges simultaneously, aka Bug ID CSCuz27219.

Affected products

• Cisco Web Security Appliance (WSA): 5.6.0-623, 6.0.0-000, 7.1.0, 7.1.1, 7.1.2, 7.1.3 (+35)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160914-wsa
• http://www.securityfocus.com/bid/92955
• http://www.securitytracker.com/id/1036829
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160914-wsa
• http://www.securityfocus.com/bid/92955
• http://www.securitytracker.com/id/1036829

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