CERTFR-2026-AVI-1077
Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans Cisco IOS XE. Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Cisco IOS XE IOS XE Software versions 17.18 antérieures à 17.18.4 ou 17.18.4a
Cisco IOS XE IOS XE Software versions 26.1.x antérieures à 26.1.2
Cisco IOS XE IOS XE Software versions 17.12.x antérieures à 17.12.8
Cisco IOS XE IOS XE Software versions 17.9.x antérieures à 17.9.10
Cisco IOS XE IOS XE Software versions 17.15.x antérieures à 17.15.6
References

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "IOS XE Software versions 17.18 ant\u00e9rieures \u00e0 17.18.4 ou 17.18.4a",
      "product": {
        "name": "IOS XE",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "IOS XE Software versions 26.1.x ant\u00e9rieures \u00e0 26.1.2",
      "product": {
        "name": "IOS XE",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "IOS XE Software versions 17.12.x ant\u00e9rieures \u00e0 17.12.8",
      "product": {
        "name": "IOS XE",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "IOS XE Software versions 17.9.x ant\u00e9rieures \u00e0 17.9.10",
      "product": {
        "name": "IOS XE",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "IOS XE Software versions 17.15.x ant\u00e9rieures \u00e0 17.15.6",
      "product": {
        "name": "IOS XE",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-20270",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20270"
    },
    {
      "name": "CVE-2026-20267",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20267"
    },
    {
      "name": "CVE-2026-20271",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20271"
    },
    {
      "name": "CVE-2026-20269",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20269"
    },
    {
      "name": "CVE-2026-20273",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20273"
    },
    {
      "name": "CVE-2026-20272",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20272"
    },
    {
      "name": "CVE-2026-20268",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20268"
    }
  ],
  "initial_release_date": "2026-08-25T00:00:00",
  "last_revision_date": "2026-08-25T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1077",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-08-25T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Cisco IOS XE. Elles permettent \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9 et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Cisco IOS XE",
  "vendor_advisories": [
    {
      "published_at": "2026-08-05",
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-hardening-iosxe-V8NMuMZJ",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJ"
    }
  ]
}


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