OS command injection in Cisco Identity Services Engine
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
A vulnerability in specific CLI commands for the Cisco Identity Services Engine (ISE) could allow an authenticated, local attacker to perform command injection to the underlying operating system or cause a hang or disconnect of the user session. The attacker needs valid administrator credentials for the device. The vulnerability is due to incomplete input validation of user input for certain CLI ISE configuration commands. An attacker could exploit this vulnerability by authenticating as an administrative user, issuing a specific CLI command, and entering crafted, malicious user input for the command parameters. An exploit could allow the attacker to perform command injection to the lower-level Linux operating system. It is also possible the attacker could cause the ISE user interface for this management session to hang or disconnect. Cisco Bug IDs: CSCvg95479.
Why it matters now
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 Identity Services Engine | Cisco Identity Services Engine | — | No fix listed | CNA |
- Cisco Identity Services Engine Vendor— Affected Cisco Identity Services Engine Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:identity_services_engine:2.0\(0.249\):*:*:*:*:*:*:* | 2.0(0.249) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.1\(0.474\):*:*:*:*:*:*:* | 2.1(0.474) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.2\(0.470\):*:*:*:*:*:*:* | 2.2(0.470) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.2\(0.903\):*:*:*:*:*:*:* | 2.2(0.903) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.3\(0.298\):*:*:*:*:*:*:* | 2.3(0.298) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.4\(0.192\):*:*:*:*:*:*:* | 2.4(0.192) | Vulnerable | Cisco |
- cpe:2.3:a:cisco:identity_services_engine:2.0\(0.249\):*:*:*:*:*:*:* Versions 2.0(0.249) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.1\(0.474\):*:*:*:*:*:*:* Versions 2.1(0.474) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.2\(0.470\):*:*:*:*:*:*:* Versions 2.2(0.470) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.2\(0.903\):*:*:*:*:*:*:* Versions 2.2(0.903) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.3\(0.298\):*:*:*:*:*:*:* Versions 2.3(0.298) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.4\(0.192\):*:*:*:*:*:*:* Versions 2.4(0.192) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0221
- 2026-10-03 Alias added: GHSA-g4f6-m2vq-p28h
References
More Cisco Identity Services Engine vulnerabilities
- TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2025-14632 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2025-14578 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2025-14579 Cisco ISE API Unauthenticated Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
- TI-2022-05522 OS command injection in Cisco Identity Services Engine Software CVSS 3.1HIGH 8.8
Sources
- CVE-2018-0221 · CVE Program
- CVE-2018-0221 · NVD
- FIRST EPSS
- GHSA-g4f6-m2vq-p28h · 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