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CVE-2017-8826

Status: ModifiedHigh (7.8)—

FastStone Image Viewer 6.2 has a "User Mode Write AV" issue, possibly related to the jpeg_mem_term function in jmemnobs.c in libjpeg. This issue can be triggered by a malformed JPEG file that is mishandled by FSViewer.exe. Attackers could exploit this issue for DoS (Access Violation) or possibly unspecified other impact.

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 (1)

Faststone — Image Viewer

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-8826",
  "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": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-07-05T20:29:03.187",
  "references": [
    {
      "url": "https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-8826",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/wlinzi/security_advisories/tree/master/CVE-2017-8826",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "FastStone Image Viewer 6.2 has a \"User Mode Write AV\" issue, possibly related to the jpeg_mem_term function in jmemnobs.c in libjpeg. This issue can be triggered by a malformed JPEG file that is mishandled by FSViewer.exe. Attackers could exploit this issue for DoS (Access Violation) or possibly unspecified other impact."
    },
    {
      "lang": "es",
      "value": "FastStone Image Viewer versión 6.2, presenta un problema de \"User Mode Write AV\", posiblemente relacionado con la función jpeg_mem_term en el archivo jmemnobs.c en biblioteca libjpeg. Este problema puede ser activado con un archivo JPEG malformado que es manejado inapropiadamente por el archivo FSViewer.exe. Los atacantes podrían aprovechar  este problema para una DoS (Violación de Acceso) o posiblemente otro impacto no especificado."
    }
  ],
  "lastModified": "2026-06-17T01:27:01.997",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:faststone:image_viewer:6.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F14D7F39-6197-414E-A08E-BDD7DA84A5D4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}