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GHSA-XQ7X-X23M-GMH8

Vulnerability from github – Published: 2026-08-05 18:31 – Updated: 2026-08-05 18:31

Details

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.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-20200"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-141"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T17:16:47Z",
    "severity": "HIGH"
  },
  "details": "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.\u0026nbsp;\n\nThis 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.\u0026nbsp;",
  "id": "GHSA-xq7x-x23m-gmh8",
  "modified": "2026-08-05T18:31:38Z",
  "published": "2026-08-05T18:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20200"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-20200 (GCVE-0-2026-20200)

Vulnerability from cvelistv5 – Published: 2026-08-05 16:18 – Updated: 2026-09-16 03:55

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 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.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-05 00:00 UTC

CWE

CWE-141 - Improper Neutralization of Parameter/Argument Delimiters

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Unified Computing System (Standalone)	Affected: 4.3(1.230097) Affected: 4.3(1.230124) Affected: 4.3(1.230138) Affected: 4.3(2.230207) Affected: 4.3(2.230270) Affected: 4.3(2.240002) Affected: 4.3(3.240022) Affected: 4.3(3.240043) Affected: 4.3(4.240142) Affected: 4.3(4.240152) Affected: 4.3(4.242028) Affected: 4.3(4.241063) Affected: 4.3(4.242038) Affected: 4.3(5.240021) Affected: 4.3(4.242066) Affected: 4.3(5.250001) Affected: 4.3(5.250030) Affected: 4.3(6.250040) Affected: 4.3(5.250033) Affected: 4.3(6.250044) Affected: 4.3(6.250053) Affected: 4.3(4.252001) Affected: 4.3(4.252002) Affected: 6.0(1.250127) Affected: 6.0(1.250131) Affected: 4.3(6.250101) Affected: 6.0(1.250174) Affected: 4.3(6.250117) Affected: 4.3(5.250043) Affected: 4.3(6.250039) Affected: 4.3(5.250045) Affected: 4.3(6.250060) Affected: 6.0(1.250130) Affected: 4.3(4.241014) Affected: 6.0(1.250192) Affected: 4.3(6.260003) Affected: 6.0(1.250194) Affected: 4.3(6.260017)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20200",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-06T03:55:43.943Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Unified Computing System (Standalone)",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "4.3(1.230097)"
            },
            {
              "status": "affected",
              "version": "4.3(1.230124)"
            },
            {
              "status": "affected",
              "version": "4.3(1.230138)"
            },
            {
              "status": "affected",
              "version": "4.3(2.230207)"
            },
            {
              "status": "affected",
              "version": "4.3(2.230270)"
            },
            {
              "status": "affected",
              "version": "4.3(2.240002)"
            },
            {
              "status": "affected",
              "version": "4.3(3.240022)"
            },
            {
              "status": "affected",
              "version": "4.3(3.240043)"
            },
            {
              "status": "affected",
              "version": "4.3(4.240142)"
            },
            {
              "status": "affected",
              "version": "4.3(4.240152)"
            },
            {
              "status": "affected",
              "version": "4.3(4.242028)"
            },
            {
              "status": "affected",
              "version": "4.3(4.241063)"
            },
            {
              "status": "affected",
              "version": "4.3(4.242038)"
            },
            {
              "status": "affected",
              "version": "4.3(5.240021)"
            },
            {
              "status": "affected",
              "version": "4.3(4.242066)"
            },
            {
              "status": "affected",
              "version": "4.3(5.250001)"
            },
            {
              "status": "affected",
              "version": "4.3(5.250030)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250040)"
            },
            {
              "status": "affected",
              "version": "4.3(5.250033)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250044)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250053)"
            },
            {
              "status": "affected",
              "version": "4.3(4.252001)"
            },
            {
              "status": "affected",
              "version": "4.3(4.252002)"
            },
            {
              "status": "affected",
              "version": "6.0(1.250127)"
            },
            {
              "status": "affected",
              "version": "6.0(1.250131)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250101)"
            },
            {
              "status": "affected",
              "version": "6.0(1.250174)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250117)"
            },
            {
              "status": "affected",
              "version": "4.3(5.250043)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250039)"
            },
            {
              "status": "affected",
              "version": "4.3(5.250045)"
            },
            {
              "status": "affected",
              "version": "4.3(6.250060)"
            },
            {
              "status": "affected",
              "version": "6.0(1.250130)"
            },
            {
              "status": "affected",
              "version": "4.3(4.241014)"
            },
            {
              "status": "affected",
              "version": "6.0(1.250192)"
            },
            {
              "status": "affected",
              "version": "4.3(6.260003)"
            },
            {
              "status": "affected",
              "version": "6.0(1.250194)"
            },
            {
              "status": "affected",
              "version": "4.3(6.260017)"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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.\u0026nbsp;\r\n\r\nThis 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.\u0026nbsp;"
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is aware that proof-of-concept exploit code is available for CVE-2026-20200.\r\n\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-141",
              "description": "Improper Neutralization of Parameter/Argument Delimiters",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T03:55:58.219Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-cimc-arg-inject-upSHdMfU",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-arg-inject-upSHdMfU"
        }
      ],
      "source": {
        "advisory": "cisco-sa-cimc-arg-inject-upSHdMfU",
        "defects": [
          "CSCwt16342"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20200",
    "datePublished": "2026-08-05T16:18:32.963Z",
    "dateReserved": "2025-10-08T11:59:15.397Z",
    "dateUpdated": "2026-09-16T03:55:58.219Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-XQ7X-X23M-GMH8

CVE-2026-20200 (GCVE-0-2026-20200)

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