CVE-2016-6437

medium

Published 2016-10-27 · Modified 2026-05-06

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CVSS v3

5.9

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

Description

A vulnerability in the SSL session cache management of Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to high consumption of disk space. The user would see a performance degradation. More Information: CSCva03095. Known Affected Releases: 5.3(5), 6.1(1), 6.2(1). Known Fixed Releases: 5.3(5g)1, 6.2(2.32).

Predictions

Exploit likelihood

69%

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

Vendor	Product	Versions
cisco	wide_area_application_services	`5.3.1`
cisco	wide_area_application_services	`5.3.3`
cisco	wide_area_application_services	`5.3.5`
cisco	wide_area_application_services	`5.3.5a`
cisco	wide_area_application_services	`5.3.5b`
cisco	wide_area_application_services	`5.3.5c`
cisco	wide_area_application_services	`5.3.5d`
cisco	wide_area_application_services	`5.3.5e`
cisco	wide_area_application_services	`5.3.5f`
cisco	wide_area_application_services	`6.1.0`
cisco	wide_area_application_services	`6.1.1`
cisco	wide_area_application_services	`6.2.1`
cisco	wide_area_application_services	`6.2.1a`

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.