--- id: CVE-2026-20200 title: >- Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability summary: >- 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 privi… severity: high cvss: 8.8 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H' cvssSource: cna cwe: - CWE-141 vendor: Cisco product: Cisco Unified Computing System (Standalone) affected: - unified_computing_system_standalone 4.3(1.230097) - unified_computing_system_standalone 4.3(1.230124) - unified_computing_system_standalone 4.3(1.230138) - unified_computing_system_standalone 4.3(2.230207) - unified_computing_system_standalone 4.3(2.230270) - unified_computing_system_standalone 4.3(2.240002) - unified_computing_system_standalone 4.3(3.240022) - unified_computing_system_standalone 4.3(3.240043) - unified_computing_system_standalone 4.3(4.240142) - unified_computing_system_standalone 4.3(4.240152) - unified_computing_system_standalone 4.3(4.242028) - unified_computing_system_standalone 4.3(4.241063) - unified_computing_system_standalone 4.3(4.242038) - unified_computing_system_standalone 4.3(5.240021) - unified_computing_system_standalone 4.3(4.242066) - unified_computing_system_standalone 4.3(5.250001) - unified_computing_system_standalone 4.3(5.250030) - unified_computing_system_standalone 4.3(6.250040) - unified_computing_system_standalone 4.3(5.250033) - unified_computing_system_standalone 4.3(6.250044) - unified_computing_system_standalone 4.3(6.250053) - unified_computing_system_standalone 4.3(4.252001) - unified_computing_system_standalone 4.3(4.252002) - unified_computing_system_standalone 6.0(1.250127) - unified_computing_system_standalone 6.0(1.250131) - unified_computing_system_standalone 4.3(6.250101) - unified_computing_system_standalone 6.0(1.250174) - unified_computing_system_standalone 4.3(6.250117) - unified_computing_system_standalone 4.3(5.250043) - unified_computing_system_standalone 4.3(6.250039) - unified_computing_system_standalone 4.3(5.250045) - unified_computing_system_standalone 4.3(6.250060) - unified_computing_system_standalone 6.0(1.250130) - unified_computing_system_standalone 4.3(4.241014) - unified_computing_system_standalone 6.0(1.250192) - unified_computing_system_standalone 4.3(6.260003) - unified_computing_system_standalone 6.0(1.250194) - unified_computing_system_standalone 4.3(6.260017) ssvc: exploitation: none automatable: 'no' technicalImpact: total timestamp: '2026-08-05T00:00:00+00:00' exploitAvailable: true published: '2026-08-05' updated: '2026-09-16' sourceUpdated: '2026-09-16T03:55:58.219Z' source: CVEORG sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-20200' references: - url: >- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU label: cisco-sa-cimc-arg-inject-upSHdMfU tags: - cve.org - exploit-available epss: 0.00734 epssPercentile: 0.52377 exploits: github: 1 githubRepos: - 'https://github.com/NSIDE-ATTACK-LOGIC/CIMCown' checkedAt: '2026-09-25T08:20:52.542Z' ingestedAt: '2026-09-16T04:49:46.355Z' --- ## Overview 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.  ## Affected - `unified_computing_system_standalone 4.3(1.230097)` - `unified_computing_system_standalone 4.3(1.230124)` - `unified_computing_system_standalone 4.3(1.230138)` - `unified_computing_system_standalone 4.3(2.230207)` - `unified_computing_system_standalone 4.3(2.230270)` - `unified_computing_system_standalone 4.3(2.240002)` - `unified_computing_system_standalone 4.3(3.240022)` - `unified_computing_system_standalone 4.3(3.240043)` - `unified_computing_system_standalone 4.3(4.240142)` - `unified_computing_system_standalone 4.3(4.240152)` - `unified_computing_system_standalone 4.3(4.242028)` - `unified_computing_system_standalone 4.3(4.241063)` - `unified_computing_system_standalone 4.3(4.242038)` - `unified_computing_system_standalone 4.3(5.240021)` - `unified_computing_system_standalone 4.3(4.242066)` - `unified_computing_system_standalone 4.3(5.250001)` - `unified_computing_system_standalone 4.3(5.250030)` - `unified_computing_system_standalone 4.3(6.250040)` - `unified_computing_system_standalone 4.3(5.250033)` - `unified_computing_system_standalone 4.3(6.250044)` - `unified_computing_system_standalone 4.3(6.250053)` - `unified_computing_system_standalone 4.3(4.252001)` - `unified_computing_system_standalone 4.3(4.252002)` - `unified_computing_system_standalone 6.0(1.250127)` - `unified_computing_system_standalone 6.0(1.250131)` - `unified_computing_system_standalone 4.3(6.250101)` - `unified_computing_system_standalone 6.0(1.250174)` - `unified_computing_system_standalone 4.3(6.250117)` - `unified_computing_system_standalone 4.3(5.250043)` - `unified_computing_system_standalone 4.3(6.250039)` - `unified_computing_system_standalone 4.3(5.250045)` - `unified_computing_system_standalone 4.3(6.250060)` - `unified_computing_system_standalone 6.0(1.250130)` - `unified_computing_system_standalone 4.3(4.241014)` - `unified_computing_system_standalone 6.0(1.250192)` - `unified_computing_system_standalone 4.3(6.260003)` - `unified_computing_system_standalone 6.0(1.250194)` - `unified_computing_system_standalone 4.3(6.260017)` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges.