Vulnerability-Lookup

CVE-2026-16933 (GCVE-0-2026-16933)

Vulnerability from cvelistv5 – Published: 2026-08-19 19:13 – Updated: 2026-08-21 16:14

Title

Power System Integer Overflow

Summary

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.

Severity

8.2 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 16:08 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

ibm mitre root

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7283216	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	Power Systems Firmware	Affected: FW1120.00 Affected: FW1110.00 , ≤ FW1110.30 (semver) Affected: FW1060.00 , ≤ FW1060.80 (semver) Affected: FW950.00 , ≤ FW950.H2 (semver) Affected: OP940.00 , ≤ OP940.a1 (semver) Affected: OP940.00 , ≤ OP940.81 (semver) cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:::::::* cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:::::::* cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:::::::* cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:::::::* cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:::::::* 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:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-16933",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-21T16:08:13.067622Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-21T16:14:24.454Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*",
            "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:*:*:*:*:*:*:*"
          ],
          "product": "Power Systems Firmware",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "FW1120.00"
            },
            {
              "lessThanOrEqual": "FW1110.30",
              "status": "affected",
              "version": "FW1110.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW1060.80",
              "status": "affected",
              "version": "FW1060.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW950.H2",
              "status": "affected",
              "version": "FW950.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "OP940.a1",
              "status": "affected",
              "version": "OP940.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "OP940.81",
              "status": "affected",
              "version": "OP940.00",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e"
            }
          ],
          "value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-190",
              "description": "CWE-190 Integer Overflow or Wraparound",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T20:05:15.480Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7283216"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eCustomers with the products below should install FW1110.31(1110_134), FW1120.01(1120_167), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1180 (9080-HEU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1110.31(1110_155), FW1120.01(1120_190), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1122 (9824-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1124 (9824-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1122s (9824-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1114 (9824-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1122 (9856-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1124 (9856-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1150 (9043-MRU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1120.01(1120_190), or newer to remediate this vulnerability.\u003c/p\u003e\u003cp\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1112 (9242-21B, 9242-21T)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cbr/\u003eCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1080 (9080-HEX)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install\u00a0 FW1060.81(1060_191), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1022 (9105-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1024 (9105-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1022s (9105-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1014 (9105-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1022 (9786-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1024 (9786-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1050 (9043-MRX)\u003c/li\u003e\u003cli\u003eIBM Power System S1012 (9028-21B)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\u003cbr/\u003ePower 9\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S922 (9009-22G)\u003c/li\u003e\u003cli\u003eIBM Power System H922 (9223-22S)\u003c/li\u003e\u003cli\u003eIBM Power System S914 (9009-41G)\u003c/li\u003e\u003cli\u003eIBM Power System S924 (9009-42G)\u003c/li\u003e\u003cli\u003eIBM Power System H924 (9223-42S)\u003c/li\u003e\u003cli\u003eIBM Power System E950 (9040-MR9)\u003c/li\u003e\u003cli\u003eIBM Power System E980 (9080-M9S)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install OP940.a2 or newer to remediate this vulnerability.\u003cbr/\u003ePower 9\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System AC922\u00a0(8335-GTH, 8335-GTX)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install OP940.82 or newer to remediate this vulnerability.\u003cbr/\u003ePower Hardware Management Console\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power Hardware Management Console (7063-CR2)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cem\u003eThe images mentioned above can be located at IBM Fix Central : \u003c/em\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"\u003e\u003cem\u003ehttps://www.ibm.com/support/fixcentral/\u003c/em\u003e\u003c/a\u003e\u003c/p\u003e"
            }
          ],
          "value": "Customers with the products below should install FW1110.31(1110_134), FW1120.01(1120_167), or newer to remediate this vulnerability.\nPower 11\n\n  *  IBM Power System E1180 (9080-HEU)\n\n\nCustomers with the products below should install FW1110.31(1110_155), FW1120.01(1120_190), or newer to remediate this vulnerability.\nPower 11\n\n  *  IBM Power System S1122 (9824-22A)\n  *  IBM Power System S1124 (9824-42A)\n  *  IBM Power System S1122s (9824-22B)\n  *  IBM Power System S1114 (9824-41B)\n  *  IBM Power System L1122 (9856-22H)\n  *  IBM Power System L1124 (9856-42H)\n  *  IBM Power System E1150 (9043-MRU)\n\n\nCustomers with the products below should install FW1120.01(1120_190), or newer to remediate this vulnerability.\n\n\n\nPower 11\n\n  *  IBM Power System S1112 (9242-21B, 9242-21T)\n\n\n\nCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\nPower 10\n\n  *  IBM Power System E1080 (9080-HEX)\n\n\nCustomers with the products below should install\u00a0 FW1060.81(1060_191), or newer to remediate this vulnerability.\nPower 10\n\n  *  IBM Power System S1022 (9105-22A)\n  *  IBM Power System S1024 (9105-42A)\n  *  IBM Power System S1022s (9105-22B)\n  *  IBM Power System S1014 (9105-41B)\n  *  IBM Power System L1022 (9786-22H)\n  *  IBM Power System L1024 (9786-42H)\n  *  IBM Power System E1050 (9043-MRX)\n  *  IBM Power System S1012 (9028-21B)\n\n\nCustomers 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\u00a0(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/"
        }
      ],
      "title": "Power System Integer Overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-16933",
    "datePublished": "2026-08-19T19:13:26.703Z",
    "dateReserved": "2026-07-24T07:31:49.353Z",
    "dateUpdated": "2026-08-21T16:14:24.454Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-16933",
      "date": "2026-08-21",
      "epss": "0.00123",
      "percentile": "0.025"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-16933\",\"sourceIdentifier\":\"psirt@us.ibm.com\",\"published\":\"2026-08-19T20:17:11.807\",\"lastModified\":\"2026-08-20T13:03:39.393\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.\"}],\"affected\":[{\"source\":\"psirt@us.ibm.com\",\"affectedData\":[{\"vendor\":\"IBM\",\"product\":\"Power Systems Firmware\",\"cpes\":[\"cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*\",\"cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*\",\"cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*\",\"cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*\",\"cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*\",\"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:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"FW1120.00\",\"status\":\"affected\"},{\"version\":\"FW1110.00\",\"lessThanOrEqual\":\"FW1110.30\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"FW1060.00\",\"lessThanOrEqual\":\"FW1060.80\",\"versionType\":\"semver\",\"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\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@us.ibm.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.5,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"psirt@us.ibm.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"}]}],\"references\":[{\"url\":\"https://www.ibm.com/support/pages/node/7283216\",\"source\":\"psirt@us.ibm.com\"}]}}"
  }
}

FKIE_CVE-2026-16933

Vulnerability from fkie_nvd - Published: 2026-08-19 20:17 - Updated: 2026-08-20 13:03

Severity

8.2 (High) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Summary

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7283216

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:*",
            "cpe:2.3:o:ibm:power_systems_firmware:fw1060.80:*:*:*:*:*:*:*",
            "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:*:*:*:*:*:*:*"
          ],
          "product": "Power Systems Firmware",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "FW1120.00"
            },
            {
              "lessThanOrEqual": "FW1110.30",
              "status": "affected",
              "version": "FW1110.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW1060.80",
              "status": "affected",
              "version": "FW1060.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW950.H2",
              "status": "affected",
              "version": "FW950.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "OP940.a1",
              "status": "affected",
              "version": "OP940.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "OP940.81",
              "status": "affected",
              "version": "OP940.00",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "psirt@us.ibm.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact."
    }
  ],
  "id": "CVE-2026-16933",
  "lastModified": "2026-08-20T13:03:39.393",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 6.0,
        "source": "psirt@us.ibm.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-08-19T20:17:11.807",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "url": "https://www.ibm.com/support/pages/node/7283216"
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "psirt@us.ibm.com",
      "type": "Primary"
    }
  ]
}

GHSA-VHM3-9QXC-9HQG

Vulnerability from github – Published: 2026-08-19 21:30 – Updated: 2026-08-19 21:30

Details

Severity

8.2 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-16933"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T20:17:11Z",
    "severity": "HIGH"
  },
  "details": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, FW950.00 through FW950.H2, OP940.00 through OP940.a1 (Power9), and OP940.00 through OP940.81 (Power HMC) is affected by a vulnerability in the interface between the BMC/FSP and the host system. An attacker with service account or root access to the BMC/FSP can read and write arbitrary regions of host system memory, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.",
  "id": "GHSA-vhm3-9qxc-9hqg",
  "modified": "2026-08-19T21:30:35Z",
  "published": "2026-08-19T21:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16933"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7283216"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-16933 (GCVE-0-2026-16933)

FKIE_CVE-2026-16933

GHSA-VHM3-9QXC-9HQG

Tags

Sightings

Nomenclature