Cisco Firepower Threat Defense Command Injection Vulnerabilities

Description

A vulnerability in the CLI of Cisco FTD Software could allow an authenticated, local attacker with administrative privileges to execute arbitrary commands with root privileges on the underlying operating system of an affected device.  This vulnerability is due to insufficient validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input to the affected commands. A successful exploit could allow the attacker to execute commands with root privileges on the underlying operating system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Scores

EPSS (exploitation in 30 days)

0.26% · top 82% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.7.

Weakness

• CWE-20: Improper Input Validation (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• Cisco · Cisco Firepower Threat Defense Software

  • affected 6.2.3
  • affected 6.6.0.1
  • affected 6.4.0.6

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

References (1)

• cisco-sa-ftd-cmdinject-FmzsLN8 (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2021-34752](https://trackcve.app/badge/CVE-2021-34752.svg)](https://trackcve.app/cve/CVE-2021-34752)

Record last updated 15 Nov 2024, 18:09 UTC.