CVE-2017-12243

Exp

A vulnerability in the Cisco Unified Computing System (UCS) Manager, Cisco Firepower 4100 Series Next-Generation Firewall (NGFW), and Cisco Firepower 9300 Security Appliance could allow an authenticated, local attacker to obtain root shell privileges on the device, aka Command Injection. The vulnerability is due to improper validation of string input in the shell application. An attacker could exploit this vulnerability through the use of malicious commands. A successful exploit could allow the attacker to obtain root shell privileges on the device. Cisco Bug IDs: CSCvf20741, CSCvf60078.

Published: 2017-11-02 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-12243 is rated High Exploit Risk (86/100): CVSS High severity, with high exploitation likelihood (EPSS 77.07%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +36.85% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2017-12243

EDB-ID Source Kind Published Link
44052 exploit_db edb 2017-11-01 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-12243

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 40.22% 77.07% +36.85%
2 2025-08-31 46.78% 40.22% -6.56%
3 2025-06-20 — 46.78% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-12243

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/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:L)
A normal user session is enough; they don’t have to be admin.
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.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2017-12243

Affected software / configurations for CVE-2017-12243

Vendor Product Version Raw CPE
cisco unified_computing_system_manager_firmware — cpe:2.3:o:cisco:unified_computing_system_manager_firmware:-:*:*:*:*:*:*:*
cisco firepower_9300_security_appliance_firmware — cpe:2.3:o:cisco:firepower_9300_security_appliance_firmware:-:*:*:*:*:*:*:*
cisco firepower_4100_next-generation_firewall_firmware — cpe:2.3:o:cisco:firepower_4100_next-generation_firewall_firmware:-:*:*:*:*:*:*:*

References for CVE-2017-12243

cvelogic Threat Intelligence