{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-13990",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-19T20:13:55.903355Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2025-09-19T20:14:07.736Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "modules": [
            "software update mechanism (update client and update delivery/protocol)"
          ],
          "platforms": [
            "Windows"
          ],
          "product": "eScan AV",
          "vendor": "MicroWorld Technologies",
          "versions": [
            {
              "status": "affected",
              "version": "*"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Avast Threat Research"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "MicroWorld eScan AV\u0027s update mechanism failed to ensure authenticity and integrity of updates: update packages were delivered and accepted without robust cryptographic verification. As a result, an on-path attacker could perform a man-in-the-middle (MitM) attack and substitute malicious update payloads for legitimate ones. The eScan AV client accepted these substituted packages and executed or loaded their components (including sideloaded DLLs and Java/installer payloads), enabling remote code execution on affected systems. MicroWorld eScan confirmed remediation of the update mechanism on 2023-07-31 but versioning details are unavailable. NOTE: MicroWorld eScan disputes the characterization in third-party reports, stating the issue relates to 2018\u20132019 and that controls were implemented then.\u003cbr\u003e"
            }
          ],
          "value": "MicroWorld eScan AV\u0027s update mechanism failed to ensure authenticity and integrity of updates: update packages were delivered and accepted without robust cryptographic verification. As a result, an on-path attacker could perform a man-in-the-middle (MitM) attack and substitute malicious update payloads for legitimate ones. The eScan AV client accepted these substituted packages and executed or loaded their components (including sideloaded DLLs and Java/installer payloads), enabling remote code execution on affected systems. MicroWorld eScan confirmed remediation of the update mechanism on 2023-07-31 but versioning details are unavailable. NOTE: MicroWorld eScan disputes the characterization in third-party reports, stating the issue relates to 2018\u20132019 and that controls were implemented then."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "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:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347 Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-19T18:54:08.729Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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      "references": [
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://blog.avast.com/leading-the-charge-against-guptiminer"
        },
        {
          "tags": [
            "technical-description",
            "exploit"
          ],
          "url": "https://www.gendigital.com/blog/insights/research/guptiminer-hijacking-antivirus-updates-for-distributing-backdoors-and-casual-mining"
        },
        {
          "tags": [
            "media-coverage"
          ],
          "url": "https://securityaffairs.com/162228/breaking-news/escan-antivirus-mitm-attack.html"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://arstechnica.com/security/2024/04/hackers-infect-users-of-antivirus-service-that-delivered-updates-over-http/"
        },
        {
          "tags": [
            "media-coverage"
          ],
          "url": "https://www.bleepingcomputer.com/news/security/hackers-hijack-antivirus-updates-to-drop-guptiminer-malware/"
        },
        {
          "tags": [
            "media-coverage"
          ],
          "url": "https://thehackernews.com/2024/04/escan-antivirus-update-mechanism.html"
        },
        {
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://www.escanav.com/en/about-us/eScan-update-advisory.asp"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/microworld-escan-av-insecure-update-mechanism-allows-mitm-replacement-of-updates"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "x_known-exploited-vulnerability"
      ],
      "title": "MicroWorld eScan AV Insecure Update Mechanism Allows Man-in-the-Middle Replacement of Updates",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2024-13990",
    "datePublished": "2025-09-19T18:54:08.729Z",
    "dateReserved": "2025-09-18T16:06:40.562Z",
    "dateUpdated": "2025-09-19T20:14:07.736Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}