FKIE_CVE-2024-36843

Vulnerability from fkie_nvd - Published: 2024-05-31 20:15 - Updated: 2026-06-17 07:37
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
libmodbus v3.1.6 was discovered to contain a heap overflow via the modbus_mapping_free() function.
References
cve@mitre.orghttps://github.com/balckgu1/libmodbusPoc/blob/main/gdb.mdExploit, Third Party Advisory
cve@mitre.orghttps://github.com/stephane/libmodbus/issues/748Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/balckgu1/libmodbusPoc/blob/main/gdb.mdExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/stephane/libmodbus/issues/748Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html
Impacted products
Vendor Product Version
libmodbus libmodbus 3.1.6
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:libmodbus:libmodbus:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "libmodbus",
          "vendor": "libmodbus",
          "versions": [
            {
              "status": "affected",
              "version": "3.1.6"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libmodbus:libmodbus:3.1.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "43D577F9-CD93-4016-811F-D9497106332F",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libmodbus v3.1.6 was discovered to contain a heap overflow via the modbus_mapping_free() function."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 que libmodbus v3.1.6 conten\u00eda un desbordamiento del mont\u00f3n mediante la funci\u00f3n modbus_mapping_free()."
    }
  ],
  "id": "CVE-2024-36843",
  "lastModified": "2026-06-17T07:37:14.587",
  "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-36843",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-08-22T17:31:56.199304Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-31T20:15:10.290",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/balckgu1/libmodbusPoc/blob/main/gdb.md"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://github.com/stephane/libmodbus/issues/748"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/balckgu1/libmodbusPoc/blob/main/gdb.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://github.com/stephane/libmodbus/issues/748"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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