# CVE-2026-20200: Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability

- Exploited (CISA KEV): no
- Published: 2026-08-05
- CVSS: 8.8 HIGH (v3.1)
- EPSS: 0.7% (54th percentile)
- CWE: CWE-141

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root. 

This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user. 

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2026-09-16 | 42 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2026-09-16 · new · rule 200204097
  > Added: signature 200204097 "Cisco IMC Remote Command Execution" (Server Side Code Injection, risk High), systems: Cisco. References: CVE-2026-20200.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2026-20200 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2026-20200