Status: EXPLOITED | Advisory ID: CVE-2026-20200
| CVE | CVE-2026-20200 |
| CVSS Score / Version | 8.8 (High) / CVSS v3.1 |
| Updated | 2026-09-22 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Cisco Unified Computing System (UCS) |
| Exploitation status | The Cisco PSIRT is aware that proof-of-concept exploit code is available for CVE-2026-20200. The Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory. (Cisco) |
| Classified as | CWE-141 (Improper Neutralization of Parameter/Argument Delimiters) |
| Exploitation prediction (EPSS) | 0.73% probability of exploitation in the next 30 days (53% percentile) -- FIRST.org's EPSS model. |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Cisco | Unified Computing System (UCS) |
| Subsystems | Industrial Network - Routers/Firewalls |
| Sectors | Multi-sector |
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.
Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.