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CVE-2018-0623

Status: ModifiedHigh (7.8)—

Untrusted search path vulnerability in Multiple Yayoi 17 Series products (Yayoi Kaikei 17 Series Ver.23.1.1 and earlier, Yayoi Aoiro Shinkoku 17 Ver.23.1.1 and earlier, Yayoi Kyuuyo 17 Ver.20.1.4 and earlier, Yayoi Kyuuyo Keisan 17 Ver.20.1.4 and earlier, Yayoi Hanbai 17 Series Ver. 20.0.2 and earlier, and Yayoi Kokyaku Kanri 17 Ver.11.0.2 and earlier) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory. This flaw exists within the handling of msjet49.dll loaded by the vulnerable products.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (6)

Yayoi-kk — Aoiro ShinkokuYayoi-kk — HanbaiYayoi-kk — KaikeiYayoi-kk — Kokyaku KanriYayoi-kk — KyuuyoYayoi-kk — Kyuuyo Keisan

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-0623",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "Yayoi Co., Ltd.",
          "product": "Multiple Yayoi 17 Series products",
          "versions": [
            {
              "status": "affected",
              "version": "(Yayoi Kaikei 17 Series Ver.+E449+E447"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-09-07T14:29:00.273",
  "references": [
    {
      "url": "http://jvn.jp/en/jp/JVN06813756/index.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "http://jvn.jp/en/jp/JVN06813756/index.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted search path vulnerability in Multiple Yayoi 17 Series products (Yayoi Kaikei 17 Series Ver.23.1.1 and earlier, Yayoi Aoiro Shinkoku 17 Ver.23.1.1 and earlier, Yayoi Kyuuyo 17 Ver.20.1.4 and earlier, Yayoi Kyuuyo Keisan 17 Ver.20.1.4 and earlier, Yayoi Hanbai 17 Series Ver. 20.0.2 and earlier, and Yayoi Kokyaku Kanri 17 Ver.11.0.2 and earlier) allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory. This flaw exists within the handling of msjet49.dll loaded by the vulnerable products."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ruta de búsqueda no fiable en múltiples productos Yayoi 17 Series (Yayoi Kaikei 17 Series Ver.23.1.1 y anteriores, Yayoi Aoiro Shinkoku 17 Ver.23.1.1 y anteriores, Yayoi Kyuuyo 17 Ver.20.1.4 y anteriores, Yayoi Kyuuyo Keisan 17 Ver.20.1.4 y anteriores, Yayoi Hanbai 17 Series Ver. 20.0.2 y anteriores y Yayoi Kokyaku Kanri 17 Ver.11.0.2 y anteriores) permite que un atacante consiga privilegios utilizando un archivo DLL troyano en un directorio no especificado. Este error existe en el manejo del archivo msjet49.dll cargado por los productos vulnerables."
    }
  ],
  "lastModified": "2026-06-17T01:31:19.507",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:yayoi-kk:aoiro_shinkoku:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DC9BFB2D-66C9-4C25-90E6-E1DAE1834D7A",
              "versionEndIncluding": "23.1.1"
            },
            {
              "criteria": "cpe:2.3:a:yayoi-kk:hanbai:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1F879E6B-1C1A-4A19-A73C-7CCE422DBDCB",
              "versionEndIncluding": "20.0.2"
            },
            {
              "criteria": "cpe:2.3:a:yayoi-kk:kaikei:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EE58A245-C499-45EC-B155-C79868CAB652",
              "versionEndIncluding": "23.1.1"
            },
            {
              "criteria": "cpe:2.3:a:yayoi-kk:kokyaku_kanri:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C5320727-E4F1-4736-9F6F-54D01B1225C5",
              "versionEndIncluding": "11.0.2"
            },
            {
              "criteria": "cpe:2.3:a:yayoi-kk:kyuuyo:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "30A74833-B37A-42C2-81D7-DAE84DA13003",
              "versionEndIncluding": "20.1.4"
            },
            {
              "criteria": "cpe:2.3:a:yayoi-kk:kyuuyo_keisan:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B9EBE469-879C-41EC-8040-4B076330B6AC",
              "versionEndIncluding": "20.1.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp"
}