cvelistv5 - cve-2026-18681

CVE-2026-18681 (GCVE-0-2026-18681)

Vulnerability from cvelistv5

Published

2026-08-19 18:36

Modified

2026-08-19 19:59

Severity ?

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

CWE

CWE-121 - Stack-based Buffer Overflow

Summary

IBM Server 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 the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.

References

URL

Tags

https://www.ibm.com/support/pages/node/7283899

vendor-advisory, patch

Impacted products

	Vendor	Product	Version
	IBM	Server Firmware	Version: FW1120.00 Version: FW1110.00 ≤ FW1110.30 Version: FW1060.00 ≤ FW1060.80 Version: FW950.00 ≤ FW950.H2 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-2026-18681",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-19T19:20:47.264675Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-19T19:59:43.874Z",
          "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": "Server 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"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIBM Server 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 the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e"
            }
          ],
          "value": "IBM Server 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 the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121 Stack-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T18:36:15.970Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.ibm.com/support/pages/node/7283899"
        }
      ],
      "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\u003ePower 9\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\nPower 9\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": "This Power System Buffer Overflow",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eProtect administrator access to the FSP.\u00a0 Install firmware images only from trusted sources.\u00a0 Validate the firmware image\u0027s integrity as described in the firmware \"Release Notes\" section \"Firmware Information and Description\" before installing it.\u003c/p\u003e"
            }
          ],
          "value": "Protect administrator access to the FSP.\u00a0 Install firmware images only from trusted sources.\u00a0 Validate the firmware image\u0027s integrity as described in the firmware \"Release Notes\" section \"Firmware Information and Description\" before installing it."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-18681",
    "datePublished": "2026-08-19T18:36:15.970Z",
    "dateReserved": "2026-08-03T15:34:34.383Z",
    "dateUpdated": "2026-08-19T19:59:43.874Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"shortName\": \"ibm\", \"dateUpdated\": \"2026-08-19T18:36:15.970Z\"}, \"title\": \"This Power System Buffer Overflow\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-121\", \"description\": \"CWE-121 Stack-based Buffer Overflow\", \"type\": \"CWE\"}]}], \"affected\": [{\"vendor\": \"IBM\", \"product\": \"Server Firmware\", \"versions\": [{\"status\": \"affected\", \"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\"}], \"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:*:*:*:*:*:*:*\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"IBM Server 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 the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"\u003cp\u003eIBM Server 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 the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact.\u003c/p\u003e\"}]}], \"references\": [{\"url\": \"https://www.ibm.com/support/pages/node/7283899\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV3_1\": {\"version\": \"3.1\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"baseSeverity\": \"MEDIUM\", \"baseScore\": 6.8, \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\"}}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Protect administrator access to the FSP.\\u00a0 Install firmware images only from trusted sources.\\u00a0 Validate the firmware image\u0027s integrity as described in the firmware \\\"Release Notes\\\" section \\\"Firmware Information and Description\\\" before installing it.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"\u003cp\u003eProtect administrator access to the FSP.\\u00a0 Install firmware images only from trusted sources.\\u00a0 Validate the firmware image\u0027s integrity as described in the firmware \\\"Release Notes\\\" section \\\"Firmware Information and Description\\\" before installing it.\u003c/p\u003e\"}]}], \"solutions\": [{\"lang\": \"en\", \"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\\nPower 9\\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/\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"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\u003ePower 9\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\"}]}]}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-18681\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-19T19:20:47.264675Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-19T19:20:53.634Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-18681\", \"assignerOrgId\": \"9a959283-ebb5-44b6-b705-dcc2bbced522\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"ibm\", \"dateReserved\": \"2026-08-03T15:34:34.383Z\", \"datePublished\": \"2026-08-19T18:36:15.970Z\", \"dateUpdated\": \"2026-08-19T19:59:43.874Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2026-18681 (GCVE-0-2026-18681)

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature