NCSC-2026-0175

Vulnerability from csaf_ncscnl - Published: 2026-06-05 08:09 - Updated: 2026-06-05 09:38
Summary
Kwetsbaarheid verholpen in Cisco SD-WAN Manager
Notes
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten: Cisco heeft een kwetsbaarheid verholpen in SD-WAN Manager, voorheen ook bekend als SD-WAN vManage.
Interpretaties: Een kwaadwillende kan deze kwetsbaarheid misbruiken door een speciaal geprepareerd bestand naar het betreffende systeem te uploaden en daarmee de rechten te verhogen tot root gebruiker. Cisco geeft aan dat actief misbruik van deze kwetsbaarheid is waargenomen. Om deze kwetsbaarheid te kunnen misbruiken, moet de aanvaller echter wel netadmin-rechten hebben op het getroffen systeem. Dit vereist geldige inloggegevens of voorgaand misbruik van CVE-2026-20182 of CVE-2026-20127. Dit beperkt het risico op misbruik voor systemen waarop deze kwetsbaarheden reeds verholpen zijn.
Oplossingen: Cisco heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans: medium
Schade: high
CWE-116: Improper Encoding or Escaping of Output
CVE-2026-20245

A vulnerability in the CLI of Cisco Catalyst SD-WAN Manager allows an authenticated local attacker with netadmin privileges to execute arbitrary root commands by uploading a crafted file due to insufficient input validation.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-116 - Improper Encoding or Escaping of Output
Affected products
Product Identifier Version Remediation
vers:unknown/*
Cisco / Catalyst SD-WAN Manager
 vers:unknown/*
References
To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "Cisco heeft een kwetsbaarheid verholpen in SD-WAN Manager, voorheen ook bekend als SD-WAN vManage.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "Een kwaadwillende kan deze kwetsbaarheid misbruiken door een speciaal geprepareerd bestand naar het betreffende systeem te uploaden en daarmee de rechten te verhogen tot root gebruiker.\n\nCisco geeft aan dat actief misbruik van deze kwetsbaarheid is waargenomen. Om deze kwetsbaarheid te kunnen misbruiken, moet de aanvaller echter wel netadmin-rechten hebben op het getroffen systeem. Dit vereist geldige inloggegevens of voorgaand misbruik van CVE-2026-20182 of CVE-2026-20127. Dit beperkt het risico op misbruik voor systemen waarop deze kwetsbaarheden reeds verholpen zijn.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Cisco heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
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        "title": "Schade"
      },
      {
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        "title": "CWE-116"
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    },
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        "summary": "Reference",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-4uxFrdzx"
      }
    ],
    "title": "Kwetsbaarheid verholpen in Cisco SD-WAN Manager",
    "tracking": {
      "current_release_date": "2026-06-05T09:38:27.005317Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0175",
      "initial_release_date": "2026-06-05T08:09:37.869638Z",
      "revision_history": [
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          "date": "2026-06-05T08:09:37.869638Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        },
        {
          "date": "2026-06-05T09:38:27.005317Z",
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          "summary": "Referentie ontbrak, in deze revisie alsnog toegevoegd."
        }
      ],
      "status": "final",
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    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
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              }
            ],
            "category": "product_name",
            "name": "Catalyst SD-WAN Manager"
          }
        ],
        "category": "vendor",
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-20245",
      "cwe": {
        "id": "CWE-116",
        "name": "Improper Encoding or Escaping of Output"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Encoding or Escaping of Output",
          "title": "CWE-116"
        },
        {
          "category": "description",
          "text": "A vulnerability in the CLI of Cisco Catalyst SD-WAN Manager allows an authenticated local attacker with netadmin privileges to execute arbitrary root commands by uploading a crafted file due to insufficient input validation.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
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        {
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          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-20245.json"
        }
      ],
      "scores": [
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "products": [
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        }
      ],
      "title": "CVE-2026-20245"
    }
  ]
}


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