Subnet Solutions PowerSYSTEM Center Incorrect Authorization

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-33570",
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "dateUpdated": "2026-05-13T00:19:39.177Z",
    "dateReserved": "2026-04-16T14:05:42.141Z",
    "datePublished": "2026-05-12T20:59:25.911Z",
    "state": "PUBLISHED"
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        "dateUpdated": "2026-05-12T20:59:25.911Z"
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      "datePublic": "2026-05-13T05:00:00.000Z",
      "title": "Subnet Solutions PowerSYSTEM Center Incorrect Authorization",
      "descriptions": [
        {
          "lang": "en",
          "value": "PowerSYSTEM Center REST API endpoint for devices allows a low privilege authenticated user to access information normally limited by operational permissions.",
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              "value": "PowerSYSTEM Center REST API endpoint for devices allows a low privilege authenticated user to access information normally limited by operational permissions."
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      "affected": [
        {
          "vendor": "Subnet Solutions",
          "product": "PowerSYSTEM Center 2020",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5.11.x",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "5.28.x"
            }
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-863 Incorrect Authorization",
              "cweId": "CWE-863",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-132-02"
        },
        {
          "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-132-02.json"
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              "lang": "en",
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          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "attackVector": "ADJACENT_NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM"
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      "solutions": [
        {
          "lang": "en",
          "value": "Subnet Solutions recommends users update to the latest version of PowerSYSTEM Center PSC 2020 Update 29, PSC 2024 Update 2, and PSC 2026 GA Hotfix.\n\n\n\nFor assistance in upgrading, users should contact a Subnet Solutions System Integration team member or customer support team at (403) 270-8885 or by email at [support@subnet.com](mailto:support@subnet.com).\n\n\n\nSubnet Solutions recommends users do the following in order to reduce risk:\n\n* Monitor user activity records to ensure users are following acceptable usage policies of the application.\n\n* Restrict access to Notification Settings to trusted Administrators Monitor \"Send from Address\" in settings and Activity Records.\n\n* Configure a notification rule that triggers in any bulk account export activity.",
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              "value": "Subnet Solutions recommends users update to the latest version of PowerSYSTEM Center PSC 2020 Update 29, PSC 2024 Update 2, and PSC 2026 GA Hotfix.\n<br>\n<br>For assistance in upgrading, users should contact a Subnet Solutions System Integration team member or customer support team at (403) 270-8885 or by email at [support@subnet.com](mailto:support@subnet.com).\n<br>\n<br>Subnet Solutions recommends users do the following in order to reduce risk:\n<br>* Monitor user activity records to ensure users are following acceptable usage policies of the application.\n<br>* Restrict access to Notification Settings to trusted Administrators Monitor \"Send from Address\" in settings and Activity Records.\n<br>* Configure a notification rule that triggers in any bulk account export activity."
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Kelly Stich of Subnet Solutions Inc. reported these vulnerabilities to CISA.",
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