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    "cveMetadata": {
        "cveId": "CVE-2026-17042",
        "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "state": "PUBLISHED",
        "assignerShortName": "ibm",
        "dateReserved": "2026-07-24T12:55:35.930Z",
        "datePublished": "2026-08-19T19:11:07.905Z",
        "dateUpdated": "2026-08-19T19:46:38.034Z"
    },
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        "cna": {
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                "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
                "shortName": "ibm",
                "dateUpdated": "2026-08-19T19:46:38.034Z"
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            "title": "Power System Out-of-bounds Read",
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                    "descriptions": [
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                            "lang": "en",
                            "cweId": "CWE-125",
                            "description": "CWE-125 Out-of-bounds Read",
                            "type": "CWE"
                        }
                    ]
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            ],
            "affected": [
                {
                    "vendor": "IBM",
                    "product": "Power Systems Firmware",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "FW950.00",
                            "lessThanOrEqual": "FW950.H2",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "OP940.00",
                            "lessThanOrEqual": "OP940.a1",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "OP940.00",
                            "lessThanOrEqual": "OP940.81",
                            "versionType": "semver"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:*",
                        "cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:*",
                        "cpe:2.3:o:ibm:power_systems_firmware:op940.00:*:*:*:*:*:*:*",
                        "cpe:2.3:o:ibm:power_systems_firmware:op940.a1:*:*:*:*:*:*:*"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "IBM Power Systems Firmware FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. This condition persists until operator intervention — clearing NVRAM via the service processor — to restore normal operation. This vulnerability only affects OpenPOWER systems; systems running PowerVM are not affected. Successful exploitation results in an integrity and availability impact to the managed system.",
                    "supportingMedia": [
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                            "value": "<p>IBM Power Systems Firmware FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 - OP940.81 (Power HMC) is affected by a vulnerability in host firmware NVRAM parsing. An attacker with root access to a guest partition on an OpenPOWER system can write a specially crafted NVRAM image, causing the host firmware boot stage to crash with possible memory corruption. This condition persists until operator intervention — clearing NVRAM via the service processor — to restore normal operation. This vulnerability only affects OpenPOWER systems; systems running PowerVM are not affected. Successful exploitation results in an integrity and availability impact to the managed system.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.ibm.com/support/pages/node/7283240",
                    "tags": [
                        "vendor-advisory",
                        "patch"
                    ]
                }
            ],
            "metrics": [
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                    "format": "CVSS",
                    "scenarios": [
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                            "lang": "en",
                            "value": "GENERAL"
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                    ],
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "availabilityImpact": "HIGH",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.3,
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H"
                    }
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            "solutions": [
                {
                    "lang": "en",
                    "value": "Customers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\nPower 9\n\n  *  IBM Power System S922 (9009-22G)\n  *  IBM Power System H922 (9223-22S)\n  *  IBM Power System S914 (9009-41G)\n  *  IBM Power System S924 (9009-42G)\n  *  IBM Power System H924 (9223-42S)\n  *  IBM Power System E950 (9040-MR9)\n  *  IBM Power System E980 (9080-M9S)\n\n\nCustomers with the products below should install OP940.a2 or newer to remediate this vulnerability.\nPower 9\n\n  *  IBM Power System AC922 (8335-GTH, 8335-GTX)\n\n\nCustomers with the products below should install OP940.82 or newer to remediate this vulnerability.\nPower Hardware Management Console\n\n  *  IBM Power Hardware Management Console (7063-CR2)\n\n\nThe images mentioned above can be located at IBM Fix Central :  https://www.ibm.com/support/fixcentral/ https://www.ibm.com/support/fixcentral/",
                    "supportingMedia": [
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                            "value": "<p>Customers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.<br/>Power 9</p><ol><li>IBM Power System S922 (9009-22G)</li><li>IBM Power System H922 (9223-22S)</li><li>IBM Power System S914 (9009-41G)</li><li>IBM Power System S924 (9009-42G)</li><li>IBM Power System H924 (9223-42S)</li><li>IBM Power System E950 (9040-MR9)</li><li>IBM Power System E980 (9080-M9S)</li></ol><p>Customers with the products below should install OP940.a2 or newer to remediate this vulnerability.<br/>Power 9</p><ol><li>IBM Power System AC922 (8335-GTH, 8335-GTX)</li></ol><p>Customers with the products below should install OP940.82 or newer to remediate this vulnerability.<br/>Power Hardware Management Console</p><ol><li>IBM Power Hardware Management Console (7063-CR2)</li></ol><p><em>The images mentioned above can be located at IBM Fix Central : </em><a href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"><em>https://www.ibm.com/support/fixcentral/</em></a></p>"
                        }
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-19T19:24:22.753664Z",
                                "id": "CVE-2026-17042",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-19T19:24:36.200Z"
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