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CVE-2026-114198 (GCVE-0-2026-114198)

Vulnerability from nvd – Published: 2026-10-21 00:39 – Updated: 2026-10-21 00:39

Title

Deserialization of untrusted data in floss

Summary

Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

Mandiant CNA under the Google root

CNA scorecard B 80/100 over 14 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/mandiant/Vulnerability-Disclos…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Mandiant FLARE	floss	Affected: 0 , < 3.2.0 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "floss",
          "vendor": "Mandiant FLARE",
          "versions": [
            {
              "lessThan": "3.2.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility"
            }
          ],
          "value": "Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-586",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-586: Object Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502: Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T00:39:47.288Z",
        "orgId": "027e81ed-0dd4-4685-ab4d-884aec5bb484",
        "shortName": "Mandiant"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0036.md"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Deserialization of untrusted data in floss",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "027e81ed-0dd4-4685-ab4d-884aec5bb484",
    "assignerShortName": "Mandiant",
    "cveId": "CVE-2026-114198",
    "datePublished": "2026-10-21T00:39:47.288Z",
    "dateReserved": "2026-10-21T00:28:41.431Z",
    "dateUpdated": "2026-10-21T00:39:47.288Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-114198 (GCVE-0-2026-114198)

Vulnerability from cvelistv5 – Published: 2026-10-21 00:39 – Updated: 2026-10-21 00:39

Title

Deserialization of untrusted data in floss

Summary

Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

Mandiant CNA under the Google root

CNA scorecard B 80/100 over 14 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/mandiant/Vulnerability-Disclos…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Mandiant FLARE	floss	Affected: 0 , < 3.2.0 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "floss",
          "vendor": "Mandiant FLARE",
          "versions": [
            {
              "lessThan": "3.2.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility"
            }
          ],
          "value": "Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-586",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-586: Object Injection"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "LOCAL",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-502",
              "description": "CWE-502: Deserialization of Untrusted Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T00:39:47.288Z",
        "orgId": "027e81ed-0dd4-4685-ab4d-884aec5bb484",
        "shortName": "Mandiant"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0036.md"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Deserialization of untrusted data in floss",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "027e81ed-0dd4-4685-ab4d-884aec5bb484",
    "assignerShortName": "Mandiant",
    "cveId": "CVE-2026-114198",
    "datePublished": "2026-10-21T00:39:47.288Z",
    "dateReserved": "2026-10-21T00:28:41.431Z",
    "dateUpdated": "2026-10-21T00:39:47.288Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Find a vulnerability

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2 vulnerabilities found for floss by Mandiant FLARE

CVE-2026-114198 (GCVE-0-2026-114198)

CVE-2026-114198 (GCVE-0-2026-114198)