What is CVE-2016-6433?

CVE-2016-6433 is a high-severity vulnerability in Cisco Secure Firewall Management Center, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2016-10-06.

How severe is CVE-2016-6433?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2016-6433 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Cisco Secure Firewall Management Center

CVE-2016-6433

The Threat Management Console in Cisco Firepower Management Center 5.2.0 through 6.0.1 allows remote authenticated users to execute arbitrary commands via crafted web-application parameters, aka Bug ID CSCva30872.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2016-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.807 (99.6th percentile), scored 2026-10-19.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.807 · newest: 0.807 · change: 0.000

Affected products

Cisco Secure Firewall Management Center — versions 5.2.0, 5.3.0, 5.3.0.2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

www.korelogic.com/Resources/Advisories/KL-001-2016-007.txt (Third Party Advisory)
www.securityfocus.com/bid/93414 (VDB Entry, Third Party Advisory, vdb-entry)
blog.korelogic.com/blog/2016/10/10/virtual_appliance_spelunking (Third Party Advisory)
www.exploit-db.com/exploits/40463/ (VDB Entry, Third Party Advisory, exploit)
www.exploit-db.com/exploits/41041/ (VDB Entry, Third Party Advisory, exploit)
packetstormsecurity.com/files/140467/Cisco-Firepower-Management-Console-6.0-Pos… (VDB Entry, Third Party Advisory)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2016-6433?: CVE-2016-6433 is a high-severity vulnerability in Cisco Secure Firewall Management Center, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2016-10-06.
How severe is CVE-2016-6433?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2016-6433 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.