Cisco Firepower Threat Defense Software Command Injection Vulnerabilities
Priority LOW 36CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00273 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | all versions | — | No fix listed | CNA |
- Cisco Firepower Threat Defense Software VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 25
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.1.0:*:*:*:*:*:*:* | 6.1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.2.0:*:*:*:*:*:*:* | 6.2.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.2.3:*:*:*:*:*:*:* | 6.2.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.3.0:*:*:*:*:*:*:* | 6.3.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.4.0:*:*:*:*:*:*:* | 6.4.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.4.0.11:*:*:*:*:*:*:* | 6.4.0.11 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.5.0:*:*:*:*:*:*:* | 6.5.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.0:*:*:*:*:*:*:* | 6.6.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.1:*:*:*:*:*:*:* | 6.6.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.7.0:*:*:*:*:*:*:* | 6.7.0 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.3.0:*:*:*:*:*:*:* Versions 6.3.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.4.0.11:*:*:*:*:*:*:* Versions 6.4.0.11 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.5.0:*:*:*:*:*:*:* Versions 6.5.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.0:*:*:*:*:*:*:* Versions 6.6.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.1:*:*:*:*:*:*:* Versions 6.6.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.7.0:*:*:*:*:*:*:* Versions 6.7.0 Vulnerable ·Cisco
Show 15 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:7.1.0:*:*:*:*:*:*:* | 7.1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* | 6.4.0 to before 6.4.0.13; 6.6.0 to before 6.6.5; 6.7.0 to before 6.7.0.3; 7.0.0 to before 7.0.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.1.0:*:*:*:*:*:*:* | 6.1.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.2.0:*:*:*:*:*:*:* | 6.2.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.2.3:*:*:*:*:*:*:* | 6.2.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.3.0:*:*:*:*:*:*:* | 6.3.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0:*:*:*:*:*:*:* | 6.4.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0.11:*:*:*:*:*:*:* | 6.4.0.11 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.5.0:*:*:*:*:*:*:* | 6.5.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.6.0:*:*:*:*:*:*:* | 6.6.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.6.1:*:*:*:*:*:*:* | 6.6.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.7.0:*:*:*:*:*:*:* | 6.7.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:7.1.0:*:*:*:*:*:*:* | 7.1.0 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:7.1.0:*:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 6.4.0 to before 6.4.0.13; 6.6.0 to before 6.6.5; 6.7.0 to before 6.7.0.3; 7.0.0 to before 7.0.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.3.0:*:*:*:*:*:*:* Versions 6.3.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0.11:*:*:*:*:*:*:* Versions 6.4.0.11 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.5.0:*:*:*:*:*:*:* Versions 6.5.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.6.0:*:*:*:*:*:*:* Versions 6.6.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.6.1:*:*:*:*:*:*:* Versions 6.6.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.7.0:*:*:*:*:*:*:* Versions 6.7.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:7.1.0:*:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Cisco Firepower Threat Defense Software — 20211027 Cisco Firepower Threat Defense Software Command Injection Vulnerabilities
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2021-13753 Cisco Firepower Threat Defense Software Command Injection VulnerabilitiesPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34756
- 2026-10-03 Alias added: GHSA-4m78-5jcj-9hxx
References
More Cisco Firepower Management Center Virtual Appliance vulnerabilities
- TI-2021-13779 Cisco Firepower Threat Defense Software SSH Connections Denial of Service Vulnerability CVSS 3.1HIGH 8.6
- TI-2018-00324 Cross-site request forgery in Cisco Firepower Management Center unknown CVSS 3.0HIGH 8.8
- TI-2021-13760 Cisco Firepower Management Center Software Authenticated Directory Traversal Vulnerability CVSS 3.1HIGH 8.1
- TI-2021-13753 Cisco Firepower Threat Defense Software Command Injection Vulnerabilities CVSS 3.1HIGH 7.8
- TI-2021-13762 Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerabilities CVSS 3.1MEDIUM 6.1
- TI-2021-13759 Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability CVSS 3.1MEDIUM 6.0
Sources
- CVE-2021-34756 · CVE Program
- CVE-2021-34756 · NVD
- FIRST EPSS
- GHSA-4m78-5jcj-9hxx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences