CVE-2015-6293: Cisco Web Security Appliance

High severity, CVSS 7.8. EPSS: 1.9% chance of exploitation in the next 30 days.

Cisco AsyncOS 8.x before 8.0.8-113, 8.1.x and 8.5.x before 8.5.3-051, 8.6.x and 8.7.x before 8.7.0-171-LD, and 8.8.x before 8.8.0-085 on Web Security Appliance (WSA) devices allows remote attackers to cause a denial of service (memory consumption) via multiple file-range requests, aka Bug ID CSCur39155.

Affected products

• Cisco Web Security Appliance: version 8.0.0-000 only; version 8.0.5 only; version 8.0.6 only; version 8.0.6-078 only; version 8.0.7-142 only; version 8.0.8-mr-113 only; …

Published 2015-11-06. Last modified 2026-06-17.