NCSC-2026-0434

Vulnerability from csaf_ncscnl - Published: 2026-10-16 06:28 - Updated: 2026-10-16 06:28
Summary
Kwetsbaarheden verholpen in Fortinet FortiSIEM
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: Fortinet heeft kwetsbaarheden verholpen in FortiSIEM versie 7.5.0.
Interpretaties: De eerste kwetsbaarheid betreft een path traversal probleem waarbij het systeem onvoldoende beperkingen oplegt aan padnamen naar beperkte directories. Hierdoor kan een niet-geauthenticeerde aanvaller speciaal opgemaakte pakketten versturen om ongeautoriseerde code of commando's uit te voeren. De tweede kwetsbaarheid betreft een ontbrekende autorisatiecontrole binnen de GUI-component, waardoor een geauthenticeerde aanvaller via speciaal opgemaakte HTTP-verzoeken autorisatiecontroles kan omzeilen en eveneens ongeautoriseerde code of commando's kan uitvoeren. Beide kwetsbaarheden kunnen leiden tot ongeautoriseerde uitvoering van commando's en daarmee tot compromittering van de systeemintegriteit en -beveiliging.
Oplossingen: Fortinet heeft updates uitgebracht om deze kwetsbaarheden in FortiSIEM te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans: medium
Schade: high
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-862: Missing Authorization
CVE-2026-106173

A path traversal vulnerability in Fortinet FortiSIEM 7.5.0 allows unauthenticated attackers to execute unauthorized code or commands via specially crafted packets.

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Product Identifier Version Remediation
vers:unknown/*
Fortinet / FortiSIEM
 vers:unknown/*
CVE-2026-106176

A missing authorization vulnerability (CWE-862) in Fortinet FortiSIEM 7.5.0 GUI allows authenticated attackers to execute unauthorized code or commands via specially crafted HTTP requests.

3.8 (Low)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
CWE-862 - Missing Authorization
Affected products
Known affected 1 product, the same list as for CVE-2026-106173
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": "Fortinet heeft kwetsbaarheden verholpen in FortiSIEM versie 7.5.0.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De eerste kwetsbaarheid betreft een path traversal probleem waarbij het systeem onvoldoende beperkingen oplegt aan padnamen naar beperkte directories. Hierdoor kan een niet-geauthenticeerde aanvaller speciaal opgemaakte pakketten versturen om ongeautoriseerde code of commando\u0027s uit te voeren. De tweede kwetsbaarheid betreft een ontbrekende autorisatiecontrole binnen de GUI-component, waardoor een geauthenticeerde aanvaller via speciaal opgemaakte HTTP-verzoeken autorisatiecontroles kan omzeilen en eveneens ongeautoriseerde code of commando\u0027s kan uitvoeren. Beide kwetsbaarheden kunnen leiden tot ongeautoriseerde uitvoering van commando\u0027s en daarmee tot compromittering van de systeemintegriteit en -beveiliging.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Fortinet heeft updates uitgebracht om deze kwetsbaarheden in FortiSIEM te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
        "title": "CWE-22"
      },
      {
        "category": "general",
        "text": "Missing Authorization",
        "title": "CWE-862"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-180"
      },
      {
        "category": "external",
        "summary": "Reference",
        "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-183"
      }
    ],
    "title": "Kwetsbaarheden verholpen in Fortinet FortiSIEM",
    "tracking": {
      "current_release_date": "2026-10-16T06:28:22.638301Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0434",
      "initial_release_date": "2026-10-16T06:28:22.638301Z",
      "revision_history": [
        {
          "date": "2026-10-16T06:28:22.638301Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "FortiSIEM"
          }
        ],
        "category": "vendor",
        "name": "Fortinet"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-106173",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "description",
          "text": "A path traversal vulnerability in Fortinet FortiSIEM 7.5.0 allows unauthenticated attackers to execute unauthorized code or commands via specially crafted packets.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-106173 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-106173.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2026-106173"
    },
    {
      "cve": "CVE-2026-106176",
      "cwe": {
        "id": "CWE-862",
        "name": "Missing Authorization"
      },
      "notes": [
        {
          "category": "other",
          "text": "Missing Authorization",
          "title": "CWE-862"
        },
        {
          "category": "description",
          "text": "A missing authorization vulnerability (CWE-862) in Fortinet FortiSIEM 7.5.0 GUI allows authenticated attackers to execute unauthorized code or commands via specially crafted HTTP requests.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-106176 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-106176.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.8,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1"
          ]
        }
      ],
      "title": "CVE-2026-106176"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.