VIR Vulnerability Intelligence Relay

CVE-2016-6407

high
Published 2016-09-17 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
7.5

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.

Predictions

Exploit likelihood
83%
Patch ETA
—

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
VendorProductVersionsFixed
cisco ciscoweb_security_appliance5.6.0-623
cisco ciscoweb_security_appliance6.0.0-000
cisco ciscoweb_security_appliance7.1.0
cisco ciscoweb_security_appliance7.1.1
cisco ciscoweb_security_appliance7.1.2
cisco ciscoweb_security_appliance7.1.3
cisco ciscoweb_security_appliance7.1.4
cisco ciscoweb_security_appliance7.5.0-000
cisco ciscoweb_security_appliance7.5.0-825
cisco ciscoweb_security_appliance7.5.1-000
cisco ciscoweb_security_appliance7.5.2-000
cisco ciscoweb_security_appliance7.5.2-hp2-303
cisco ciscoweb_security_appliance7.7.0-000
cisco ciscoweb_security_appliance7.7.0-608
cisco ciscoweb_security_appliance7.7.1-000
cisco ciscoweb_security_appliance7.7.5-835
cisco ciscoweb_security_appliance8.0.0-000
cisco ciscoweb_security_appliance8.0.5
cisco ciscoweb_security_appliance8.0.6
cisco ciscoweb_security_appliance8.0.6-078
cisco ciscoweb_security_appliance8.0.6-119
cisco ciscoweb_security_appliance8.0.7
cisco ciscoweb_security_appliance8.0.7-142
cisco ciscoweb_security_appliance8.0.8-mr-113
cisco ciscoweb_security_appliance8.5.0-497
cisco ciscoweb_security_appliance8.5.0.000
cisco ciscoweb_security_appliance8.5.1-021
cisco ciscoweb_security_appliance8.5.2-024
cisco ciscoweb_security_appliance8.5.2-027
cisco ciscoweb_security_appliance8.5.3-055
cisco ciscoweb_security_appliance8.8.0-000
cisco ciscoweb_security_appliance8.8.0-085
cisco ciscoweb_security_appliance9.0.0-193
cisco ciscoweb_security_appliance9.0_base
cisco ciscoweb_security_appliance9.1.0-000
cisco ciscoweb_security_appliance9.1.0-070
cisco ciscoweb_security_appliance9.1_base
cisco ciscoweb_security_appliance9.5.0-235
cisco ciscoweb_security_appliance9.5.0-284
cisco ciscoweb_security_appliance9.5.0-444
cisco ciscoweb_security_appliance9.5_base

References

CWEs

CWE-399

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

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