Improper input validation in Cisco Identity Services Engine
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability in specific CLI commands for the Cisco Identity Services Engine could allow an authenticated, local attacker to cause a denial of service (DoS) condition. The device may need to be manually rebooted to recover. The vulnerability is due to lack of proper input validation of the CLI user input for certain CLI commands. An attacker could exploit this vulnerability by authenticating to the device and issuing a crafted, malicious CLI command on the targeted device. A successful exploit could allow the attacker to cause a DoS condition. The attacker must have valid administrative privileges on the device to exploit this vulnerability. Cisco Bug IDs: CSCvf63414, CSCvh51992.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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\(1.145\):*:*:*:*:*:*:* | 2.2(1.145) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:identity_services_engine:2.4\(0.247\):*:*:*:*:*:*:* | 2.4(0.247) | 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\(1.145\):*:*:*:*:*:*:* Versions 2.2(1.145) Vulnerable ·Cisco
- cpe:2.3:a:cisco:identity_services_engine:2.4\(0.247\):*:*:*:*:*:*:* Versions 2.4(0.247) Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0211
- 2026-10-03 Alias added: GHSA-f978-vh2v-fvj4
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-2018-0211 · CVE Program
- CVE-2018-0211 · NVD
- FIRST EPSS
- GHSA-f978-vh2v-fvj4 · 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