CVE-2015-4217: Cisco Content Security Management Virtual Appliance

Medium severity, CVSS 4.3. EPSS: 2.2% chance of exploitation in the next 30 days.

The remote-support feature on Cisco Web Security Virtual Appliance (WSAv), Email Security Virtual Appliance (ESAv), and Security Management Virtual Appliance (SMAv) devices before 2015-06-25 uses the same default SSH host keys across different customers' installations, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging knowledge of a private key from another installation, aka Bug IDs CSCus29681, CSCuu95676, and CSCuu96601.

Affected products

• Cisco Content Security Management Virtual Appliance: version 8.4.0.0150 only; version 9.0.0.087 only
• Cisco Email Security Virtual Appliance: version 8.0.0 only; version 8.5.6 only; version 8.5.7 only; version 9.0.0 only
• Cisco Web Security Virtual Appliance: version 7.7.5 only; version 8.0.5 only; version 8.5.0 only; version 8.5.1 only; version 8.6.0 only; version 8.7.0 only

Published 2015-06-26. Last modified 2026-06-17.