{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2025-31935",
        "ASSIGNER": "ics-cert@hq.dhs.gov",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Subnet Solutions \n\nPowerSYSTEM Center is affected by a mishandling of exceptional conditions vulnerability. Crafted data that is passed to the API may trigger an exception, resulting in a denial-of-service condition."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-502 Deserialization of Untrusted Data",
                        "cweId": "CWE-502"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Subnet Solutions",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "PowerSYSTEM Center 2020",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<=",
                                            "version_name": "0",
                                            "version_value": "5.24.x"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-100-08",
                "refsource": "MISC",
                "name": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-100-08"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.2.0"
    },
    "source": {
        "advisory": "ICSA-25-100-08",
        "discovery": "INTERNAL"
    },
    "work_around": [
        {
            "lang": "en",
            "supportingMedia": [
                {
                    "base64": false,
                    "type": "text/html",
                    "value": "<p>If updating PSC is not possible, Subnet Solutions Inc recommends users apply the following mitigations to help reduce risk:</p><ul><li>Disable Notification Service, Email Dispatch Service, or the outgoing email server in Notifications/Settings.</li><li>Configure PowerSYSTEM Center DCS network firewall to only allow connections to an approved and authorized email server.</li><li>Manage administrator access to PowerSYSTEM Center DCS operating system.</li><li>Monitor user activity records to ensure users are following acceptable usage policies of the application.</li></ul>\n\n<br>"
                }
            ],
            "value": "If updating PSC is not possible, Subnet Solutions Inc recommends users apply the following mitigations to help reduce risk:\n\n  *  Disable Notification Service, Email Dispatch Service, or the outgoing email server in Notifications/Settings.\n  *  Configure PowerSYSTEM Center DCS network firewall to only allow connections to an approved and authorized email server.\n  *  Manage administrator access to PowerSYSTEM Center DCS operating system.\n  *  Monitor user activity records to ensure users are following acceptable usage policies of the application."
        }
    ],
    "solution": [
        {
            "lang": "en",
            "supportingMedia": [
                {
                    "base64": false,
                    "type": "text/html",
                    "value": "<p>Subnet Solutions Inc. recommends users update PowerSYSTEM Center (PSC) to the latest versions:</p><ul><li>PSC 2020 Update 25</li><li>PSC 2024</li></ul>\n\n\n\n<span style=\"background-color: rgb(255, 255, 255);\">For assistance with updating PSC, reach out directly to </span><a target=\"_blank\" rel=\"nofollow\">Subnet Solutions</a><span style=\"background-color: rgb(255, 255, 255);\">.</span>\n\n<br>"
                }
            ],
            "value": "Subnet Solutions Inc. recommends users update PowerSYSTEM Center (PSC) to the latest versions:\n\n  *  PSC 2020 Update 25\n  *  PSC 2024\n\n\n\n\n\n\nFor assistance with updating PSC, reach out directly to Subnet Solutions."
        }
    ],
    "credits": [
        {
            "lang": "en",
            "value": "Subnet Solutions Inc. reported this vulnerability to CISA."
        }
    ],
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
            }
        ]
    }
}