WID-SEC-W-2026-0522

Vulnerability from csaf_certbund - Published: 2026-02-25 23:00 - Updated: 2026-02-25 23:00
Summary
Cisco FXOS und Unified Computing System (UCS): Mehrere Schwachstellen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: FXOS (FirePOWER eXtensible Operating System) ist ein Betriebssystem für Cisco Firepower Appliances Bei dem Cisco Unified Computing System (UCS) handelt es sich um eine Rechenzentrumsplattform, die Rechenleistung, Netzwerk, Storage-Zugriff und Virtualisierung in einem System zusammenführt.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Cisco FXOS und Cisco Unified Computing System (UCS) ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, und um beliebigen Programmcode mit Administratorrechten auszuführen.
Betroffene Betriebssysteme: - Linux - Sonstiges - UNIX
CVE-2026-20091
Affected products
Product Identifier Version Remediation
Cisco Unified Computing System (UCS) <4.3(6a)
Cisco / Unified Computing System (UCS)
 <4.3(6a)
Cisco FXOS
Cisco
 cpe:/o:cisco:fxos:- —
CVE-2026-20099
Affected products
Product Identifier Version Remediation
Cisco Unified Computing System (UCS) <4.3(6c)
Cisco / Unified Computing System (UCS)
 <4.3(6c)
Cisco Unified Computing System (UCS) <4.3(6a)
Cisco / Unified Computing System (UCS)
 <4.3(6a)
Cisco FXOS
Cisco
 cpe:/o:cisco:fxos:- —
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "FXOS (FirePOWER eXtensible Operating System) ist ein Betriebssystem f\u00fcr Cisco Firepower Appliances\r\nBei dem Cisco Unified Computing System (UCS) handelt es sich um eine Rechenzentrumsplattform, die Rechenleistung, Netzwerk, Storage-Zugriff und Virtualisierung in einem System zusammenf\u00fchrt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Cisco FXOS und Cisco Unified Computing System (UCS) ausnutzen, um einen Cross-Site Scripting Angriff durchzuf\u00fchren, und um beliebigen Programmcode mit Administratorrechten auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-0522 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0522.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0522 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0522"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-ucsfxosxss-7skVE8Zv vom 2026-02-25",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsfxosxss-7skVE8Zv"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-ucsciv-wGYtC78q vom 2026-02-25",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsciv-wGYtC78q"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco FXOS und Unified Computing System (UCS): Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-02-25T23:00:00.000+00:00",
      "generator": {
        "date": "2026-02-26T09:57:03.785+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0522",
      "initial_release_date": "2026-02-25T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-02-25T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Cisco FXOS",
            "product": {
              "name": "Cisco FXOS",
              "product_id": "T051223",
              "product_identification_helper": {
                "cpe": "cpe:/o:cisco:fxos:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c4.3(6a)",
                "product": {
                  "name": "Cisco Unified Computing System (UCS) \u003c4.3(6a)",
                  "product_id": "T051224"
                }
              },
              {
                "category": "product_version",
                "name": "4.3(6a)",
                "product": {
                  "name": "Cisco Unified Computing System (UCS) 4.3(6a)",
                  "product_id": "T051224-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:cisco:unified_computing_system:4.3%25286a%2529"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c4.3(6c)",
                "product": {
                  "name": "Cisco Unified Computing System (UCS) \u003c4.3(6c)",
                  "product_id": "T051225"
                }
              },
              {
                "category": "product_version",
                "name": "4.3(6c)",
                "product": {
                  "name": "Cisco Unified Computing System (UCS) 4.3(6c)",
                  "product_id": "T051225-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:cisco:unified_computing_system:4.3%25286c%2529"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Unified Computing System (UCS)"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-20091",
      "product_status": {
        "known_affected": [
          "T051224",
          "T051223"
        ]
      },
      "release_date": "2026-02-25T23:00:00.000+00:00",
      "title": "CVE-2026-20091"
    },
    {
      "cve": "CVE-2026-20099",
      "product_status": {
        "known_affected": [
          "T051225",
          "T051224",
          "T051223"
        ]
      },
      "release_date": "2026-02-25T23:00:00.000+00:00",
      "title": "CVE-2026-20099"
    }
  ]
}


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