Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability
Summary
| CVE | CVE-2026-20200 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-05 17:16:47 UTC |
| Updated | 2026-08-31 20:35:43 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.057100000 probability, percentile 0.924970000 (date 2026-09-02)
Problem Types: CWE-141 | CWE-141 Improper Neutralization of Parameter/Argument Delimiters
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSSV3_1 | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Cisco | Unified Computing System | 4.3\(1.230097\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(1.230124\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(1.230138\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(2.230207\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(2.230270\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(2.240002\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(3.240022\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(3.240043\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.240142\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.240152\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.241014\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.241063\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.242028\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.242038\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.242066\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.252001\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(4.252002\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(5.240021\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(5.250001\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(5.250030\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(5.250033\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(5.250043\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(5.250045\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250039\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250040\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250044\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250053\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250060\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250101\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.250117\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.260003\) | All | All | All |
| Application | Cisco | Unified Computing System | 4.3\(6.260017\) | All | All | All |
| Application | Cisco | Unified Computing System | 6.0\(1.250127\) | All | All | All |
| Application | Cisco | Unified Computing System | 6.0\(1.250130\) | All | All | All |
| Application | Cisco | Unified Computing System | 6.0\(1.250131\) | All | All | All |
| Application | Cisco | Unified Computing System | 6.0\(1.250174\) | All | All | All |
| Application | Cisco | Unified Computing System | 6.0\(1.250192\) | All | All | All |
| Application | Cisco | Unified Computing System | 6.0\(1.250194\) | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-a... | [email protected] | sec.cloudapps.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: 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.
There are currently no legacy QID mappings associated with this CVE.