CVE-2015-4216

medium

Published 2015-06-26 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.0

Description

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 root authorized key across different customers' installations, which makes it easier for remote attackers to bypass authentication by leveraging knowledge of a private key from another installation, aka Bug IDs CSCuu95988, CSCuu95994, and CSCuu96630.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact

Vendor	Product	Versions
cisco	content_security_management_virtual_appliance	`8.4.0.0150`
cisco	content_security_management_virtual_appliance	`9.0.0.087`
cisco	email_security_virtual_appliance	`8.0.0`
cisco	email_security_virtual_appliance	`8.5.6`
cisco	email_security_virtual_appliance	`8.5.7`
cisco	email_security_virtual_appliance	`9.0.0`
cisco	web_security_virtual_appliance	`7.7.5`
cisco	web_security_virtual_appliance	`8.0.5`
cisco	web_security_virtual_appliance	`8.5.0`
cisco	web_security_virtual_appliance	`8.5.1`
cisco	web_security_virtual_appliance	`8.6.0`
cisco	web_security_virtual_appliance	`8.7.0`

References

CWEs

CWE-200

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.