Cisco Firepower Management Center Software Authenticated Directory Traversal Vulnerability
Priority MEDIUM 41CWE-26Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. The attacker would require valid device credentials. The vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTPS request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on the device.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01987 80th 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 Management Center | all versions | — | No fix listed | CNA |
- Cisco Firepower Management Center VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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:6.4.0:*:*:*:*:*:*:* | 6.4.0 | 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:6.6.1:*:*:*:*:*:*:* | 6.6.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.2:*:*:*:*:*:*:* | 6.6.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.3:*:*:*:*:*:*:* | 6.6.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.4:*:*:*:*:*:*:* | 6.6.4 | 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: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:firepower_management_center_virtual_appliance:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 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:6.6.1:*:*:*:*:*:*:* Versions 6.6.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.2:*:*:*:*:*:*:* Versions 6.6.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.3:*:*:*:*:*:*:* Versions 6.6.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.6.4:*:*:*:*:*:*:* Versions 6.6.4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:firepower_management_center_virtual_appliance:6.7.0:*:*:*:*:*:*:* Versions 6.7.0 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
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* | before 6.4.0.13; 6.5.0 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:6.2.3:*:*:*:*:*:*:* | 6.2.3 | 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:6.5.0:*:*:*:*:*:*:* | 6.5.0 | 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:6.6.2:*:*:*:*:*:*:* | 6.6.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.6.3:*:*:*:*:*:*:* | 6.6.3 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:6.6.4:*:*:*:*:*:*:* | 6.6.4 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:sourcefire_defense_center:7.0.0:*:*:*:*:*:*:* | 7.0.0 | Vulnerable | Cisco |
- cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions before 6.4.0.13; 6.5.0 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:6.2.3:*:*:*:*:*:*:* Versions 6.2.3 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:6.5.0:*:*:*:*:*:*:* Versions 6.5.0 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:6.6.2:*:*:*:*:*:*:* Versions 6.6.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.6.3:*:*:*:*:*:*:* Versions 6.6.3 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:6.6.4:*:*:*:*:*:*:* Versions 6.6.4 Vulnerable ·Cisco
- cpe:2.3:a:cisco:sourcefire_defense_center:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34762
- 2026-10-03 Alias added: GHSA-8m4x-wmgm-h3w9
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-2021-13754 Cisco Firepower Threat Defense Software Command Injection Vulnerabilities CVSS 3.1HIGH 7.8
- 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-2021-34762 · CVE Program
- CVE-2021-34762 · NVD
- FIRST EPSS
- GHSA-8m4x-wmgm-h3w9 · 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