WID-SEC-W-2026-2674

Vulnerability from csaf_certbund - Published: 2026-08-05 22:00 - Updated: 2026-08-05 22:00
Summary
Cisco IOS XE: Mehrere Schwachstellen
Severity
Hoch
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: Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das für Cisco Geräte wie z. B. Router und Switches eingesetzt wird.
Angriff: Ein Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand herbeizuführen.
Betroffene Betriebssysteme: - CISCO Appliance
CVE-2026-20267
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20268
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20269
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20270
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20271
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20272
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20273
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20308
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20311
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20124
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
CVE-2026-20263
Affected products
Product Identifier Version Remediation
Cisco IOS XE
Cisco / IOS XE
 cpe:/o:cisco:ios_xe:- —
Cisco IOS XE <17.9.10
Cisco / IOS XE
 <17.9.10
Cisco IOS XE <17.12.8
Cisco / IOS XE
 <17.12.8
Cisco IOS XE <17.15.6
Cisco / IOS XE
 <17.15.6
Cisco IOS XE <17.18.4
Cisco / IOS XE
 <17.18.4
Cisco IOS XE <17.18.4a
Cisco / IOS XE
 <17.18.4a
Cisco IOS XE <26.1.2
Cisco / IOS XE
 <26.1.2
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das f\u00fcr Cisco Ger\u00e4te wie z. B. Router und Switches eingesetzt wird.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um beliebigen Code auszuf\u00fchren, Sicherheitsma\u00dfnahmen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand herbeizuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "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-2026-2674 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2674.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-2674 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2674"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-webui-dos-qdc7qx3 vom 2026-08-05",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webui-dos-qdc7qx3"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-xe-webui-dos-PtAODAWW vom 2026-08-05",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xe-webui-dos-PtAODAWW"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-iosxe-snmp-dos-ZAqNm4MD vom 2026-08-05",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-snmp-dos-ZAqNm4MD"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-iosxe-bing-MGHrFAkd vom 2026-08-05",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-bing-MGHrFAkd"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory cisco-sa-hardening-iosxe-V8NMuMZJ vom 2026-08-05",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJ"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco IOS XE: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-08-05T22:00:00.000+00:00",
      "generator": {
        "date": "2026-08-06T11:46:09.996+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-2674",
      "initial_release_date": "2026-08-05T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-08-05T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Cisco IOS XE",
                "product": {
                  "name": "Cisco IOS XE",
                  "product_id": "T057656",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:-"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c17.9.10",
                "product": {
                  "name": "Cisco IOS XE \u003c17.9.10",
                  "product_id": "T057657"
                }
              },
              {
                "category": "product_version",
                "name": "17.9.10",
                "product": {
                  "name": "Cisco IOS XE 17.9.10",
                  "product_id": "T057657-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:17.9.10"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c17.12.8",
                "product": {
                  "name": "Cisco IOS XE \u003c17.12.8",
                  "product_id": "T057658"
                }
              },
              {
                "category": "product_version",
                "name": "17.12.8",
                "product": {
                  "name": "Cisco IOS XE 17.12.8",
                  "product_id": "T057658-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:17.12.8"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c17.15.6",
                "product": {
                  "name": "Cisco IOS XE \u003c17.15.6",
                  "product_id": "T057659"
                }
              },
              {
                "category": "product_version",
                "name": "17.15.6",
                "product": {
                  "name": "Cisco IOS XE 17.15.6",
                  "product_id": "T057659-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:17.15.6"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c17.18.4",
                "product": {
                  "name": "Cisco IOS XE \u003c17.18.4",
                  "product_id": "T057660"
                }
              },
              {
                "category": "product_version",
                "name": "17.18.4",
                "product": {
                  "name": "Cisco IOS XE 17.18.4",
                  "product_id": "T057660-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:17.18.4"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c17.18.4a",
                "product": {
                  "name": "Cisco IOS XE \u003c17.18.4a",
                  "product_id": "T057661"
                }
              },
              {
                "category": "product_version",
                "name": "17.18.4a",
                "product": {
                  "name": "Cisco IOS XE 17.18.4a",
                  "product_id": "T057661-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:17.18.4a"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c26.1.2",
                "product": {
                  "name": "Cisco IOS XE \u003c26.1.2",
                  "product_id": "T057662"
                }
              },
              {
                "category": "product_version",
                "name": "26.1.2",
                "product": {
                  "name": "Cisco IOS XE 26.1.2",
                  "product_id": "T057662-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:cisco:ios_xe:26.1.2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "IOS XE"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-20267",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20267"
    },
    {
      "cve": "CVE-2026-20268",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20268"
    },
    {
      "cve": "CVE-2026-20269",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20269"
    },
    {
      "cve": "CVE-2026-20270",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20270"
    },
    {
      "cve": "CVE-2026-20271",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20271"
    },
    {
      "cve": "CVE-2026-20272",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20272"
    },
    {
      "cve": "CVE-2026-20273",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20273"
    },
    {
      "cve": "CVE-2026-20308",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20308"
    },
    {
      "cve": "CVE-2026-20311",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20311"
    },
    {
      "cve": "CVE-2026-20124",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20124"
    },
    {
      "cve": "CVE-2026-20263",
      "product_status": {
        "known_affected": [
          "T057656",
          "T057657",
          "T057658",
          "T057659",
          "T057660",
          "T057661",
          "T057662"
        ]
      },
      "release_date": "2026-08-05T22:00:00.000+00:00",
      "title": "CVE-2026-20263"
    }
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.