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TI-2016-05489 Aliases CVE-2016-6407GHSA-83cp-8php-jfpv

Cisco AsyncOS through 9.5.0-444 on Web Security Appliance (WSA) devices allows remote…

Priority LOW 38CWE-399Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.02475 84th 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 41

CPEVersionsRoleVendor
cpe:2.3:a:cisco:web_security_appliance:5.6.0-623:*:*:*:*:*:*:*5.6.0-623VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:6.0.0-000:*:*:*:*:*:*:*6.0.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.1.0:*:*:*:*:*:*:*7.1.0VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.1.1:*:*:*:*:*:*:*7.1.1VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.1.2:*:*:*:*:*:*:*7.1.2VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.1.3:*:*:*:*:*:*:*7.1.3VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.1.4:*:*:*:*:*:*:*7.1.4VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.5.0-000:*:*:*:*:*:*:*7.5.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.5.0-825:*:*:*:*:*:*:*7.5.0-825VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.5.1-000:*:*:*:*:*:*:*7.5.1-000VulnerableCisco
  • cpe:2.3:a:cisco:web_security_appliance:5.6.0-623:*:*:*:*:*:*:* Versions 5.6.0-623 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:6.0.0-000:*:*:*:*:*:*:* Versions 6.0.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.1.0:*:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.1.1:*:*:*:*:*:*:* Versions 7.1.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.1.2:*:*:*:*:*:*:* Versions 7.1.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.1.3:*:*:*:*:*:*:* Versions 7.1.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.1.4:*:*:*:*:*:*:* Versions 7.1.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.5.0-000:*:*:*:*:*:*:* Versions 7.5.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.5.0-825:*:*:*:*:*:*:* Versions 7.5.0-825 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.5.1-000:*:*:*:*:*:*:* Versions 7.5.1-000 Vulnerable ·Cisco
Show 31 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:cisco:web_security_appliance:7.5.2-000:*:*:*:*:*:*:*7.5.2-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.5.2-hp2-303:*:*:*:*:*:*:*7.5.2-hp2-303VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.7.0-000:*:*:*:*:*:*:*7.7.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.7.0-608:*:*:*:*:*:*:*7.7.0-608VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.7.1-000:*:*:*:*:*:*:*7.7.1-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:7.7.5-835:*:*:*:*:*:*:*7.7.5-835VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.0-000:*:*:*:*:*:*:*8.0.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.5:*:*:*:*:*:*:*8.0.5VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.6:*:*:*:*:*:*:*8.0.6VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.6-078:*:*:*:*:*:*:*8.0.6-078VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.6-119:*:*:*:*:*:*:*8.0.6-119VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.7:*:*:*:*:*:*:*8.0.7VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.7-142:*:*:*:*:*:*:*8.0.7-142VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.0.8-mr-113:*:*:*:*:*:*:*8.0.8-mr-113VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.5.0-497:*:*:*:*:*:*:*8.5.0-497VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.5.0.000:*:*:*:*:*:*:*8.5.0.000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.5.1-021:*:*:*:*:*:*:*8.5.1-021VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.5.2-024:*:*:*:*:*:*:*8.5.2-024VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.5.2-027:*:*:*:*:*:*:*8.5.2-027VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.5.3-055:*:*:*:*:*:*:*8.5.3-055VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.8.0-000:*:*:*:*:*:*:*8.8.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:8.8.0-085:*:*:*:*:*:*:*8.8.0-085VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.0.0-193:*:*:*:*:*:*:*9.0.0-193VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.0_base:*:*:*:*:*:*:*9.0_baseVulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.1.0-000:*:*:*:*:*:*:*9.1.0-000VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.1.0-070:*:*:*:*:*:*:*9.1.0-070VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.1_base:*:*:*:*:*:*:*9.1_baseVulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5.0-235:*:*:*:*:*:*:*9.5.0-235VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5.0-284:*:*:*:*:*:*:*9.5.0-284VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5.0-444:*:*:*:*:*:*:*9.5.0-444VulnerableCisco
cpe:2.3:a:cisco:web_security_appliance:9.5_base:*:*:*:*:*:*:*9.5_baseVulnerableCisco
  • cpe:2.3:a:cisco:web_security_appliance:7.5.2-000:*:*:*:*:*:*:* Versions 7.5.2-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.5.2-hp2-303:*:*:*:*:*:*:* Versions 7.5.2-hp2-303 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.7.0-000:*:*:*:*:*:*:* Versions 7.7.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.7.0-608:*:*:*:*:*:*:* Versions 7.7.0-608 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.7.1-000:*:*:*:*:*:*:* Versions 7.7.1-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:7.7.5-835:*:*:*:*:*:*:* Versions 7.7.5-835 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.0-000:*:*:*:*:*:*:* Versions 8.0.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.5:*:*:*:*:*:*:* Versions 8.0.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.6:*:*:*:*:*:*:* Versions 8.0.6 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.6-078:*:*:*:*:*:*:* Versions 8.0.6-078 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.6-119:*:*:*:*:*:*:* Versions 8.0.6-119 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.7:*:*:*:*:*:*:* Versions 8.0.7 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.7-142:*:*:*:*:*:*:* Versions 8.0.7-142 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.0.8-mr-113:*:*:*:*:*:*:* Versions 8.0.8-mr-113 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.5.0-497:*:*:*:*:*:*:* Versions 8.5.0-497 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.5.0.000:*:*:*:*:*:*:* Versions 8.5.0.000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.5.1-021:*:*:*:*:*:*:* Versions 8.5.1-021 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.5.2-024:*:*:*:*:*:*:* Versions 8.5.2-024 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.5.2-027:*:*:*:*:*:*:* Versions 8.5.2-027 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.5.3-055:*:*:*:*:*:*:* Versions 8.5.3-055 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.8.0-000:*:*:*:*:*:*:* Versions 8.8.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:8.8.0-085:*:*:*:*:*:*:* Versions 8.8.0-085 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.0.0-193:*:*:*:*:*:*:* Versions 9.0.0-193 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.0_base:*:*:*:*:*:*:* Versions 9.0_base Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.1.0-000:*:*:*:*:*:*:* Versions 9.1.0-000 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.1.0-070:*:*:*:*:*:*:* Versions 9.1.0-070 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.1_base:*:*:*:*:*:*:* Versions 9.1_base Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5.0-235:*:*:*:*:*:*:* Versions 9.5.0-235 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5.0-284:*:*:*:*:*:*:* Versions 9.5.0-284 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5.0-444:*:*:*:*:*:*:* Versions 9.5.0-444 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:web_security_appliance:9.5_base:*:*:*:*:*:*:* Versions 9.5_base Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-6407
  2. 2026-10-03 Alias added: GHSA-83cp-8php-jfpv

References

Advisory 1

  • TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
  • TI-2018-00369 Uncontrolled resource consumption in Cisco AsyncOS Software for Cisco Web Security… CVSS 3.0HIGH 8.6
  • TI-2019-01508 Cisco Web Security Appliance HTTPS Certificate Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2018-00312 A vulnerability in traffic-monitoring functions in Cisco Web Security Appliance (WSA)… CVSS 3.0HIGH 7.5
  • TI-2021-01086 Cisco Web Security Appliance Privilege Escalation Vulnerability CVSS 3.1HIGH 8.8
  • TI-2019-11999 Cisco Web Security Appliance Unauthorized Device Reset Vulnerability CVSS 3.1HIGH 8.8
See all 64 →

Sources

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