CVE-2023-20015 | Cisco Firepower 4100 Series, Firepower 9300 Security Appliances, and UCS Fabric Interconnects Command Injection Vulnerability

A vulnerability in the CLI of Cisco Firepower 4100 Series, Cisco Firepower 9300 Security Appliances, and Cisco UCS 6200, 6300, 6400, and 6500 Series Fabric Interconnects could allow an authenticated, local attacker to inject unauthorized commands. This vulnerability is due to insufficient input validation of commands supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute unauthorized commands within the CLI. An attacker with Administrator privileges could also execute arbitrary commands on the underlying operating system of Cisco UCS 6400 and 6500 Series Fabric Interconnects with root-level privileges.

Published: 2023-02-23 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-20015 is rated Low Risk (28.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-20015

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.15% 0.22% +0.08%
2 2026-03-15 0.15% 0.15% -0.01%
3 2026-03-02 — 0.15% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-20015

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.0 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 0.8 5.2 [email protected]
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 5.9 [email protected]

Weakness enumeration for CVE-2023-20015

Affected software / configurations for CVE-2023-20015

Vendor Product Version Raw CPE
cisco ucs_central_software >= 4.0, < 4.0\(4o\) cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*
cisco ucs_central_software >= 4.1, < 4.1\(3k\) cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*
cisco ucs_central_software >= 4.2, < 4.2\(2d\) cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*
cisco ucs_6536_firmware — cpe:2.3:o:cisco:ucs_6536_firmware:-:*:*:*:*:*:*:*
cisco ucs_64108_firmware — cpe:2.3:o:cisco:ucs_64108_firmware:-:*:*:*:*:*:*:*
cisco ucs_6454_firmware — cpe:2.3:o:cisco:ucs_6454_firmware:-:*:*:*:*:*:*:*
cisco ucs_6200_firmware — cpe:2.3:o:cisco:ucs_6200_firmware:-:*:*:*:*:*:*:*
cisco ucs_6248up_firmware — cpe:2.3:o:cisco:ucs_6248up_firmware:-:*:*:*:*:*:*:*
cisco ucs_6296up_firmware — cpe:2.3:o:cisco:ucs_6296up_firmware:-:*:*:*:*:*:*:*
cisco ucs_6300_firmware — cpe:2.3:o:cisco:ucs_6300_firmware:-:*:*:*:*:*:*:*
cisco ucs_6324_firmware — cpe:2.3:o:cisco:ucs_6324_firmware:-:*:*:*:*:*:*:*
cisco ucs_6332_firmware — cpe:2.3:o:cisco:ucs_6332_firmware:-:*:*:*:*:*:*:*
cisco ucs_6332-16up_firmware — cpe:2.3:o:cisco:ucs_6332-16up_firmware:-:*:*:*:*:*:*:*
cisco firepower_extensible_operating_system — cpe:2.3:o:cisco:firepower_extensible_operating_system:-:*:*:*:*:*:*:*

References for CVE-2023-20015

cvelogic Threat Intelligence