Vulnerability-Lookup

CVE-2026-16938 (GCVE-0-2026-16938)

Vulnerability from cvelistv5 – Published: 2026-08-19 18:48 – Updated: 2026-08-20 15:26

Title

Power System Missing Authorization

Summary

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention — clearing the affected configuration — to restore normal operation. Successful exploitation results in an availability impact to the managed system.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-20 15:18 UTC

CWE

CWE-862 - Missing Authorization

Assigner

ibm mitre root

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7283896	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) 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:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-16938",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-20T15:18:49.285398Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-20T15:26:35.014Z",
          "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:*:*:*:*:*:*:*"
          ],
          "product": "Power Systems Firmware",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "FW1120.00"
            },
            {
              "lessThanOrEqual": "FW1110.30",
              "status": "affected",
              "version": "FW1110.00",
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            },
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              "lessThanOrEqual": "FW1060.80",
              "status": "affected",
              "version": "FW1060.00",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "FW950.H2",
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              "value": "\u003cp\u003eIBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention \u2014 clearing the affected configuration \u2014 to restore normal operation. Successful exploitation results in an availability impact to the managed system.\u003c/p\u003e"
            }
          ],
          "value": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention \u2014 clearing the affected configuration \u2014 to restore normal operation. Successful exploitation results in an availability impact to the managed system."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T18:59:17.561Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7283896"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eCustomers with the products below should install FW1120.01(1120_167), FW1110.31(1110_134), or newer to remediate this vulnerability.\u003c/p\u003e\u003cp\u003ePower 11\u003cbr/\u003e1) IBM Power System E1180 (9080-HEU)\u003c/p\u003e\u003cp\u003eCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\u003c/p\u003e\u003cp\u003ePower 10\u003cbr/\u003e1) IBM Power System E1080 (9080-HEX)\u003c/p\u003e\u003cp\u003eCustomers with the products below should install FW950.H3(950_230), or newer to remediate this vulnerability.\u003c/p\u003e\u003cp\u003ePower9\u003cbr/\u003e1) IBM Power System S922 (9009-22G)\u003cbr/\u003e2) IBM Power System H922 (9223-22S)\u003cbr/\u003e3) IBM Power System S914 (9009-41G)\u003cbr/\u003e4) IBM Power System S924 (9009-42G)\u003cbr/\u003e5) IBM Power System H924 (9223-42S)\u003cbr/\u003e6) IBM Power System E950 (9040-MR9)\u003cbr/\u003e7) IBM Power System E980 (9080-M9S)\u003c/p\u003e\u003cp\u003eThe images mentioned above can be located at IBM Fix Central : \u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/fixcentral/\u003c/a\u003e\u003c/p\u003e"
            }
          ],
          "value": "Customers with the products below should install FW1120.01(1120_167), FW1110.31(1110_134), or newer to remediate this vulnerability.\n\n\n\nPower 11\n1) IBM Power System E1180 (9080-HEU)\n\n\n\nCustomers with the products below should install FW1060.81(1060_184), or newer to remediate this vulnerability.\n\n\n\nPower 10\n1) IBM Power System E1080 (9080-HEX)\n\n\n\nCustomers with the products below should install FW950.H3(950_230), or newer to remediate this vulnerability.\n\n\n\nPower9\n1) IBM Power System S922 (9009-22G)\n2) IBM Power System H922 (9223-22S)\n3) IBM Power System S914 (9009-41G)\n4) IBM Power System S924 (9009-42G)\n5) IBM Power System H924 (9223-42S)\n6) IBM Power System E950 (9040-MR9)\n7) IBM Power System E980 (9080-M9S)\n\n\n\nThe images mentioned above can be located at IBM Fix Central :  https://www.ibm.com/support/fixcentral/"
        }
      ],
      "title": "Power System Missing Authorization",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eProtect access to the FSP\u0027s administrative interface.\u003c/p\u003e"
            }
          ],
          "value": "Protect access to the FSP\u0027s administrative interface."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-16938",
    "datePublished": "2026-08-19T18:48:32.835Z",
    "dateReserved": "2026-07-24T07:44:31.605Z",
    "dateUpdated": "2026-08-20T15:26:35.014Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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      "date": "2026-08-21",
      "epss": "0.00138",
      "percentile": "0.03658"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-16938\",\"sourceIdentifier\":\"psirt@us.ibm.com\",\"published\":\"2026-08-19T19:17:10.963\",\"lastModified\":\"2026-08-20T16:17:15.910\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention \u2014 clearing the affected configuration \u2014 to restore normal operation. Successful exploitation results in an availability impact to the managed system.\"}],\"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:*:*:*:*:*:*:*\"],\"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\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@us.ibm.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H\",\"baseScore\":6.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.7,\"impactScore\":4.7}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-20T15:18:49.285398Z\",\"id\":\"CVE-2026-16938\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"psirt@us.ibm.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://www.ibm.com/support/pages/node/7283896\",\"source\":\"psirt@us.ibm.com\"}]}}"
  }
}

FKIE_CVE-2026-16938

Vulnerability from fkie_nvd - Published: 2026-08-19 19:17 - Updated: 2026-08-20 16:17

Severity

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

Summary

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7283896

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:*:*:*:*:*:*:*"
          ],
          "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"
            }
          ]
        }
      ],
      "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, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention \u2014 clearing the affected configuration \u2014 to restore normal operation. Successful exploitation results in an availability impact to the managed system."
    }
  ],
  "id": "CVE-2026-16938",
  "lastModified": "2026-08-20T16:17:15.910",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.7,
        "impactScore": 4.7,
        "source": "psirt@us.ibm.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16938",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-20T15:18:49.285398Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2026-08-19T19:17:10.963",
  "references": [
    {
      "source": "psirt@us.ibm.com",
      "url": "https://www.ibm.com/support/pages/node/7283896"
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
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}

GHSA-V4HV-27X8-H9VQ

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

Details

Severity

6.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-16938"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-19T19:17:10Z",
    "severity": "MODERATE"
  },
  "details": "IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in access controls over privileged system configuration operations on the FSP. An attacker with authenticated administrator-level access to the FSP can place the managed system into a non-production operational mode, allowing certain system components to be disabled. This condition persists across FSP resets and requires explicit operator intervention \u2014 clearing the affected configuration \u2014 to restore normal operation. Successful exploitation results in an availability impact to the managed system.",
  "id": "GHSA-v4hv-27x8-h9vq",
  "modified": "2026-08-19T21:30:30Z",
  "published": "2026-08-19T21:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16938"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7283896"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/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-2026-16938 (GCVE-0-2026-16938)

FKIE_CVE-2026-16938

GHSA-V4HV-27X8-H9VQ

Tags

Sightings

Nomenclature