FKIE_CVE-2026-39929

Vulnerability from fkie_nvd - Published: 2026-05-28 22:16 - Updated: 2026-07-21 10:10
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Lakeside SysTrack Agent versions prior to 11.2.1.28, 11.3.0.38, 11.4.0.24, 11.5.0.15 contain an out-of-bounds read vulnerability in the Command ID 30 UDP packet handler that allows remote attackers to crash the application by sending a specially crafted UDP packet. Attackers can send a malformed packet with an invalid memory address at offset 0x4 in the payload to trigger an access violation and cause a denial of service.
References
disclosure@vulncheck.comhttps://documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes
disclosure@vulncheck.comhttps://documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes
disclosure@vulncheck.comhttps://documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes
disclosure@vulncheck.comhttps://documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds-read-via-udp
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "affected",
          "product": "SysTrack Agent",
          "vendor": "Lakeside Software, LLC.",
          "versions": [
            {
              "lessThan": "11.2.1.28",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "11.3.0.38",
              "status": "affected",
              "version": "11.3.0.xxx",
              "versionType": "custom"
            },
            {
              "lessThan": "11.4.0.24",
              "status": "affected",
              "version": "11.4.0.xxx",
              "versionType": "custom"
            },
            {
              "lessThan": "11.5.0.15",
              "status": "affected",
              "version": "11.5.0.xxx",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Lakeside SysTrack Agent versions prior to 11.2.1.28, 11.3.0.38, 11.4.0.24, 11.5.0.15 contain an out-of-bounds read vulnerability in the Command ID 30 UDP packet handler that allows remote attackers to crash the application by sending a specially crafted UDP packet. Attackers can send a malformed packet with an invalid memory address at offset 0x4 in the payload to trigger an access violation and cause a denial of service."
    },
    {
      "lang": "es",
      "value": "Versiones de Lakeside SysTrack Agent anteriores a 11.2.1.28, 11.3.0.38, 11.4.0.24, 11.5.0.15 contienen una vulnerabilidad de lectura fuera de l\u00edmites en el gestor de paquetes UDP con ID de Comando 30 que permite a atacantes remotos bloquear la aplicaci\u00f3n enviando un paquete UDP especialmente dise\u00f1ado. Los atacantes pueden enviar un paquete malformado con una direcci\u00f3n de memoria no v\u00e1lida en el desplazamiento 0x4 en la carga \u00fatil para desencadenar una violaci\u00f3n de acceso y causar una denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2026-39929",
  "lastModified": "2026-07-21T10:10:00.103",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-39929",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-29T19:07:03.880257Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-28T22:16:58.693",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds-read-via-udp"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        },
        {
          "lang": "en",
          "value": "CWE-754"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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