CVE-2023-20063

Cisco Cisco Firepower Threat Defense Software and Cisco Firepower Management Center Code Injection Vulnerability

HIGH
8.2
CVSS Score
Published: November 1, 2023 at 05:11 PM UTC
Updated: August 11, 2026 at 07:33 PM UTC
4 products affected across 1 vendorSecure Firewall Threat DefenseSecure Firewall Management CenterFirepower Management Center

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A vulnerability in the inter-device communication mechanisms between devices that are running Cisco Firepower Threat Defense (FTD) Software and devices that are running Cisco Firepower Management (FMC) Software could allow an authenticated, local attacker to execute arbitrary commands with root permissions on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by accessing the expert mode of an affected device and submitting specific commands to a connected system. A successful exploit could allow the attacker to execute arbitrary code in the context of an FMC device if the attacker has administrative privileges on an associated FTD device. Alternatively, a successful exploit could allow the attacker to execute arbitrary code in the context of an FTD device if the attacker has administrative privileges on an associated FMC device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.2.3 ≤ v ≤ 6.2.3.186.4.0 ≤ v ≤ 6.4.0.166.6.0 ≤ v ≤ 6.6.7.17.0.0 ≤ v ≤ 7.0.57.1.0 ≤ v ≤ 7.1.0.37.3.0 ≤ v ≤ 7.3.1.1
6.2.3 ≤ v ≤ 6.2.3.186.4.0 ≤ v ≤ 6.4.0.176.6.0 ≤ v ≤ 6.6.7.16.7.0 ≤ v ≤ 6.7.0.37.0.0 ≤ v ≤ 7.0.57.1.0 ≤ v ≤ 7.1.0.37.2.0 ≤ v ≤ 7.2.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHcisco
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94CWE-20

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