SSA-139483

Vulnerability from csaf_siemens - Published: 2026-06-09 00:00 - Updated: 2026-06-09 00:00
Summary
SSA-139483: File Upload Vulnerability in SIPROTEC 5 Using DIGSI5 Protocol
Notes
Summary: SIPROTEC 5 is vulnerable to arbitrary file uploads by authenticated users using the DIGSI 5 protocol. This could allow an attacker to upload malicious configuration files, potentially causing a permanent denial of service condition. As a mitigation measure, users of the CP050 and CP150 device models are advised to upgrade to version 9.90 or later. For CP300 device models, devices 7ST85 and 7ST86 are advised to upgrade to version 10.00 or later, while the remaining models should upgrade to version 9.90 or later. These versions introduce an allow-list feature that restricts arbitrary file uploads and reduces the risk associated with this vulnerability. Siemens is preparing fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.
General Recommendations: Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines can be found at: https://www.siemens.com/gridsecurity
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use: The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.
CWE-434 - Unrestricted Upload of File with Dangerous Type
Affected products
Product Identifier Version Remediation
SIPROTEC 5 6MD84 (CP300)
Siemens / SIPROTEC 5 6MD84 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 6MD85 (CP200)
Siemens / SIPROTEC 5 6MD85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 6MD85 (CP300)
Siemens / SIPROTEC 5 6MD85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 6MD86 (CP200)
Siemens / SIPROTEC 5 6MD86 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 6MD86 (CP300)
Siemens / SIPROTEC 5 6MD86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 6MD89 (CP300)
Siemens / SIPROTEC 5 6MD89 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 6MU85 (CP300)
Siemens / SIPROTEC 5 6MU85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7KE85 (CP200)
Siemens / SIPROTEC 5 7KE85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7KE85 (CP300)
Siemens / SIPROTEC 5 7KE85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SA82 (CP100)
Siemens / SIPROTEC 5 7SA82 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SA82 (CP150)
Siemens / SIPROTEC 5 7SA82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SA86 (CP200)
Siemens / SIPROTEC 5 7SA86 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SA86 (CP300)
Siemens / SIPROTEC 5 7SA86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SA87 (CP200)
Siemens / SIPROTEC 5 7SA87 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SA87 (CP300)
Siemens / SIPROTEC 5 7SA87 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SD82 (CP100)
Siemens / SIPROTEC 5 7SD82 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SD82 (CP150)
Siemens / SIPROTEC 5 7SD82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SD86 (CP200)
Siemens / SIPROTEC 5 7SD86 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SD86 (CP300)
Siemens / SIPROTEC 5 7SD86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SD87 (CP200)
Siemens / SIPROTEC 5 7SD87 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SD87 (CP300)
Siemens / SIPROTEC 5 7SD87 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SJ81 (CP100)
Siemens / SIPROTEC 5 7SJ81 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SJ81 (CP150)
Siemens / SIPROTEC 5 7SJ81 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SJ82 (CP100)
Siemens / SIPROTEC 5 7SJ82 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SJ82 (CP150)
Siemens / SIPROTEC 5 7SJ82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SJ85 (CP200)
Siemens / SIPROTEC 5 7SJ85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SJ85 (CP300)
Siemens / SIPROTEC 5 7SJ85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SJ86 (CP200)
Siemens / SIPROTEC 5 7SJ86 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SJ86 (CP300)
Siemens / SIPROTEC 5 7SJ86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SK82 (CP100)
Siemens / SIPROTEC 5 7SK82 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SK82 (CP150)
Siemens / SIPROTEC 5 7SK82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SK85 (CP200)
Siemens / SIPROTEC 5 7SK85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SK85 (CP300)
Siemens / SIPROTEC 5 7SK85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SL82 (CP100)
Siemens / SIPROTEC 5 7SL82 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SL82 (CP150)
Siemens / SIPROTEC 5 7SL82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SL86 (CP200)
Siemens / SIPROTEC 5 7SL86 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SL86 (CP300)
Siemens / SIPROTEC 5 7SL86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SL87 (CP200)
Siemens / SIPROTEC 5 7SL87 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SL87 (CP300)
Siemens / SIPROTEC 5 7SL87 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SS85 (CP200)
Siemens / SIPROTEC 5 7SS85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7SS85 (CP300)
Siemens / SIPROTEC 5 7SS85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7ST85 (CP200)
Siemens / SIPROTEC 5 7ST85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7ST85 (CP300)
Siemens / SIPROTEC 5 7ST85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7ST86 (CP300)
Siemens / SIPROTEC 5 7ST86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SX82 (CP150)
Siemens / SIPROTEC 5 7SX82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SX85 (CP300)
Siemens / SIPROTEC 5 7SX85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7SY82 (CP150)
Siemens / SIPROTEC 5 7SY82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7UM85 (CP300)
Siemens / SIPROTEC 5 7UM85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7UT82 (CP100)
Siemens / SIPROTEC 5 7UT82 (CP100)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7UT82 (CP150)
Siemens / SIPROTEC 5 7UT82 (CP150)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7UT85 (CP200)
Siemens / SIPROTEC 5 7UT85 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7UT85 (CP300)
Siemens / SIPROTEC 5 7UT85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7UT86 (CP200)
Siemens / SIPROTEC 5 7UT86 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7UT86 (CP300)
Siemens / SIPROTEC 5 7UT86 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7UT87 (CP200)
Siemens / SIPROTEC 5 7UT87 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7UT87 (CP300)
Siemens / SIPROTEC 5 7UT87 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7VE85 (CP300)
Siemens / SIPROTEC 5 7VE85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7VK87 (CP200)
Siemens / SIPROTEC 5 7VK87 (CP200)
vers:all/*
Mitigation
Mitigation
Mitigation
No Fix Planned
SIPROTEC 5 7VK87 (CP300)
Siemens / SIPROTEC 5 7VK87 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 7VU85 (CP300)
Siemens / SIPROTEC 5 7VU85 (CP300)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available
SIPROTEC 5 Compact 7SX800 (CP050)
Siemens / SIPROTEC 5 Compact 7SX800 (CP050)
vers:all/*
Mitigation
Mitigation
Mitigation
Mitigation
None Available

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          },
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            ],
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              }
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          },
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              }
            ],
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          },
          {
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              }
            ],
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          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/*",
                "product": {
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                }
              }
            ],
            "category": "product_name",
            "name": "SIPROTEC 5 Compact 7SX800 (CP050)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-40808",
      "cwe": {
        "id": "CWE-434",
        "name": "Unrestricted Upload of File with Dangerous Type"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected application allows authenticated users to upload arbitrary files using DIGSI 5 protocol. This could allow an attacker to upload malicious configuration files, that could cause denial of service condition and potentially lead to code execution.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15",
          "16",
          "17",
          "18",
          "19",
          "20",
          "21",
          "22",
          "23",
          "24",
          "25",
          "26",
          "27",
          "28",
          "29",
          "30",
          "31",
          "32",
          "33",
          "34",
          "35",
          "36",
          "37",
          "38",
          "39",
          "40",
          "41",
          "42",
          "43",
          "44",
          "45",
          "46",
          "47",
          "48",
          "49",
          "50",
          "51",
          "52",
          "53",
          "54",
          "55",
          "56",
          "57",
          "58",
          "59",
          "60",
          "61"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "\u003cbr\u003e\nUsers are advised to upgrade to V9.90 or later, which introduces an allow-list feature that restricts arbitrary file uploads",
          "product_ids": [
            "1",
            "3",
            "5",
            "6",
            "7",
            "9",
            "11",
            "13",
            "15",
            "17",
            "19",
            "21",
            "23",
            "25",
            "27",
            "29",
            "31",
            "33",
            "35",
            "37",
            "39",
            "41",
            "45",
            "46",
            "47",
            "48",
            "50",
            "52",
            "54",
            "56",
            "57",
            "59",
            "60",
            "61"
          ]
        },
        {
          "category": "mitigation",
          "details": "Apply password protection to all DIGSI connections to ensure secure communication",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29",
            "30",
            "31",
            "32",
            "33",
            "34",
            "35",
            "36",
            "37",
            "38",
            "39",
            "40",
            "41",
            "42",
            "43",
            "44",
            "45",
            "46",
            "47",
            "48",
            "49",
            "50",
            "51",
            "52",
            "53",
            "54",
            "55",
            "56",
            "57",
            "58",
            "59",
            "60",
            "61"
          ]
        },
        {
          "category": "mitigation",
          "details": "For DIGSI access provision your own certificates signed by your customer PKI as described in https://support.industry.siemens.com/cs/document/109768375",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29",
            "30",
            "31",
            "32",
            "33",
            "34",
            "35",
            "36",
            "37",
            "38",
            "39",
            "40",
            "41",
            "42",
            "43",
            "44",
            "45",
            "46",
            "47",
            "48",
            "49",
            "50",
            "51",
            "52",
            "53",
            "54",
            "55",
            "56",
            "57",
            "58",
            "59",
            "60",
            "61"
          ]
        },
        {
          "category": "mitigation",
          "details": "For the available devices [CP050, CP100, CP150 and CP300] , activate role based access control (RBAC) in the device (supported in SIPROTEC 5 firmware versions V7.80 and higher)",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29",
            "30",
            "31",
            "32",
            "33",
            "34",
            "35",
            "36",
            "37",
            "38",
            "39",
            "40",
            "41",
            "42",
            "43",
            "44",
            "45",
            "46",
            "47",
            "48",
            "49",
            "50",
            "51",
            "52",
            "53",
            "54",
            "55",
            "56",
            "57",
            "58",
            "59",
            "60",
            "61"
          ]
        },
        {
          "category": "mitigation",
          "details": "Users are advised to upgrade to V10.00 or later, which introduces an allow-list feature that restricts arbitrary file uploads",
          "product_ids": [
            "43",
            "44"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "2",
            "4",
            "8",
            "10",
            "12",
            "14",
            "16",
            "18",
            "20",
            "22",
            "24",
            "26",
            "28",
            "30",
            "32",
            "34",
            "36",
            "38",
            "40",
            "42",
            "49",
            "51",
            "53",
            "55",
            "58"
          ]
        },
        {
          "category": "none_available",
          "details": "Currently no fix is available",
          "product_ids": [
            "1",
            "3",
            "5",
            "6",
            "7",
            "9",
            "11",
            "13",
            "15",
            "17",
            "19",
            "21",
            "23",
            "25",
            "27",
            "29",
            "31",
            "33",
            "35",
            "37",
            "39",
            "41",
            "43",
            "44",
            "45",
            "46",
            "47",
            "48",
            "50",
            "52",
            "54",
            "56",
            "57",
            "59",
            "60",
            "61"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
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            "16",
            "17",
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            "20",
            "21",
            "22",
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            "26",
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            "28",
            "29",
            "30",
            "31",
            "32",
            "33",
            "34",
            "35",
            "36",
            "37",
            "38",
            "39",
            "40",
            "41",
            "42",
            "43",
            "44",
            "45",
            "46",
            "47",
            "48",
            "49",
            "50",
            "51",
            "52",
            "53",
            "54",
            "55",
            "56",
            "57",
            "58",
            "59",
            "60",
            "61"
          ]
        }
      ],
      "title": "CVE-2025-40808"
    }
  ]
}


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Tags
Taxonomy of the tags.


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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.

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Detection rules are retrieved from Rulezet.

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