FKIE_CVE-2026-91813

Vulnerability from fkie_nvd - Published: 2026-09-23 08:17 - Updated: 2026-09-23 17:58
Severity
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
A vulnerability in Foxit PDF Editor/Reader’s update mechanism allows an update package to be replaced between download and high-privilege extraction due to insufficient file locking and integrity validation. This could enable local attackers to execute arbitrary code with elevated privileges.
References
14984358-7092-470d-8f34-ade47a7658a2https://www.foxit.com/support/security-bulletins.html
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Foxit PDF Editor",
          "vendor": "Foxit Software Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 2026.2 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 14.0.7 and earlier"
            },
            {
              "status": "affected",
              "version": "Versions 13.2.6 and earlier"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Foxit PDF Reader",
          "vendor": "Foxit Software Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 2026.2 and earlier"
            }
          ]
        }
      ],
      "source": "14984358-7092-470d-8f34-ade47a7658a2"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Foxit PDF Editor/Reader\u2019s update mechanism allows an update package to be replaced between download and high-privilege extraction due to insufficient file locking and integrity validation. This could enable local attackers to execute arbitrary code with elevated privileges."
    }
  ],
  "id": "CVE-2026-91813",
  "lastModified": "2026-09-23T17:58:26.570",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0,
        "source": "14984358-7092-470d-8f34-ade47a7658a2",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-91813",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-23T14:37:19.640678Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-23T08:17:13.550",
  "references": [
    {
      "source": "14984358-7092-470d-8f34-ade47a7658a2",
      "url": "https://www.foxit.com/support/security-bulletins.html"
    }
  ],
  "sourceIdentifier": "14984358-7092-470d-8f34-ade47a7658a2",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "14984358-7092-470d-8f34-ade47a7658a2",
      "type": "Secondary"
    }
  ]
}



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Sightings

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Nomenclature

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.