Vulnerability-Lookup

GHSA-JHFP-HM4V-FWGF

Vulnerability from github – Published: 2026-10-12 21:32 – Updated: 2026-10-12 21:32

Details

IBM Power Systems Firmware FW1060.00 through FW1060.81 is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to overflow host firmware runtime attribute storage, allowing arbitrary code to be executed in the host firmware runtime. This gives the attacker full access to the managed system's memory and hardware interfaces, resulting in a confidentiality, integrity, and availability impact to the managed system.

Severity

8.2 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-96264"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-12T21:17:24Z",
    "severity": "HIGH"
  },
  "details": "IBM Power Systems Firmware FW1060.00 through FW1060.81  is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to overflow host firmware runtime attribute storage, allowing arbitrary code to be executed in the host firmware runtime. This gives the attacker full access to the managed system\u0027s memory and hardware interfaces, resulting in a confidentiality, integrity, and availability impact to the managed system.",
  "id": "GHSA-jhfp-hm4v-fwgf",
  "modified": "2026-10-12T21:32:02Z",
  "published": "2026-10-12T21:32:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96264"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7290126"
    }
  ],
  "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"
    }
  ]
}

CVE-2026-96264 (GCVE-0-2026-96264)

Vulnerability from cvelistv5 – Published: 2026-10-12 20:52 – Updated: 2026-10-13 11:57

Title

IBM Power Systems Firmware Buffer Overflow

Summary

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 2026-10-13 03:55 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

ibm CNA under the mitre root

CNA scorecard B 88/100 over 1229 records in the last 180 days details

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7290126	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version
IBM	PowerVM Hypervisor	Affected: FW1060.00 , ≤ FW1060.81 (semver) cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:::::::* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:::::::* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81:::::::* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81.0:::::::*

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-96264",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-13T03:55:38.378548Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-13T11:57:49.645Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:powervm_hypervisor:fw1060.81.0:*:*:*:*:*:*:*"
          ],
          "product": "PowerVM Hypervisor",
          "vendor": "IBM",
          "versions": [
            {
              "lessThanOrEqual": "FW1060.81",
              "status": "affected",
              "version": "FW1060.00",
              "versionType": "semver"
            }
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              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM Power Systems Firmware FW1060.00 through FW1060.81  is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to overflow host firmware runtime attribute storage, allowing arbitrary code to be executed in the host firmware runtime. This gives the attacker full access to the managed system\u0027s memory and hardware interfaces, resulting in a confidentiality, integrity, and availability impact to the managed system.\u003c/p\u003e"
            }
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          "value": "IBM Power Systems Firmware FW1060.00 through FW1060.81  is affected by a vulnerability in the service processor mailbox interface. An attacker with authenticated service-level access to the FSP can send a specially crafted mailbox message to overflow host firmware runtime attribute storage, allowing arbitrary code to be executed in the host firmware runtime. This gives the attacker full access to the managed system\u0027s memory and hardware interfaces, resulting in a confidentiality, integrity, and availability impact to the managed system."
        }
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      "metrics": [
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          "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"
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          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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        "dateUpdated": "2026-10-12T20:52:10.876Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
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          "url": "https://www.ibm.com/support/pages/node/7290126"
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      ],
      "solutions": [
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eCustomers with the products below should install\u00a0 FW1060.82(1060_199), 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\u003e\u003c/p\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"
            }
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        }
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    "assignerShortName": "ibm",
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    "datePublished": "2026-10-12T20:52:10.876Z",
    "dateReserved": "2026-09-22T20:15:11.014Z",
    "dateUpdated": "2026-10-13T11:57:49.645Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.
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GHSA-JHFP-HM4V-FWGF

CVE-2026-96264 (GCVE-0-2026-96264)

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