ReviewHigh

CVE-2021-34755

Cisco Cisco Firepower Threat Defense Software, firepower management center virtual appliance, secure firewall threat defense

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.

CVSS: 7.8
EPSS: 0.27%
CISA KEV: Not listed
Published: 2021.10.28

PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.27%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Cisco Cisco Firepower Threat Defense Software, firepower management center virtual appliance, secure firewall threat defense
Affected versions: 6.1.0, 6.2.0, 6.2.3, 6.3.0, 6.4.0, 6.4.0.11, 6.5.0, 6.6.0, 6.6.1, 6.7.0, 7.0.0, 7.1.0, >= 6.4.0 < 6.4.0.13, >= 6.6.0 < 6.6.5, >= 6.7.0 < 6.7.0.3, >= 7.0.0 < 7.0.1
Fixed versions: 6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Cisco Cisco Firepower Threat Defense Software, firepower management center virtual appliance, secure firewall threat defense and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-20, CWE-78