{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "nut",
          "vendor": "networkupstools",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.4.2, \u003c= 2.8.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Network UPS Tools is a collection of programs which provide a common interface for monitoring and administering UPS, PDU and SCD hardware. From 2.4.2 through 2.8.5, ippon_command in drivers/blazer_usb.c partially initializes char tmp[64] with a short Megatec status query and then passes a fixed eight-byte chunk to usb_control_msg. A malicious firmware-controlled USB device presenting the Mustek Powermust VID 0x06da and Mustek Powermust PID 0x0003 matches blazer_usb_id, selects ippon_subdriver, and can receive the uninitialized trailing stack bytes during normal polling. The disclosure is bounded and read-only, requires physical or supply-chain access to the USB bus, and has no established integrity or availability impact. This issue is scheduled to be fixed in version 2.8.6."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 2.4,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-457",
              "description": "CWE-457: Use of Uninitialized Variable",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-05T22:57:24.731Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/networkupstools/nut/security/advisories/GHSA-fjxc-2vpv-mqc8",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/networkupstools/nut/security/advisories/GHSA-fjxc-2vpv-mqc8"
        },
        {
          "name": "https://github.com/networkupstools/nut/pull/3529",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/networkupstools/nut/pull/3529"
        },
        {
          "name": "https://github.com/networkupstools/nut/commit/30d56d4282f823949b40763d5c76461c7dd107b3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/networkupstools/nut/commit/30d56d4282f823949b40763d5c76461c7dd107b3"
        }
      ],
      "source": {
        "advisory": "GHSA-fjxc-2vpv-mqc8",
        "discovery": "UNKNOWN"
      },
      "title": "NUT blazer_usb ippon_command stack info-leak via unzeroed char tmp[64] in OUT-direction usb_control_msg"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-85068",
    "datePublished": "2026-11-05T22:57:24.731Z",
    "dateReserved": "2026-09-02T21:21:01.775Z",
    "dateUpdated": "2026-11-05T22:57:24.731Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}