aSc TimeTables 2020.11.4 - Denial of Service

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2020-37109",
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "dateUpdated": "2026-02-06T23:14:06.283Z",
    "dateReserved": "2026-02-01T13:16:06.490Z",
    "datePublished": "2026-02-06T23:14:06.283Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck",
        "dateUpdated": "2026-02-06T23:14:06.283Z"
      },
      "title": "aSc TimeTables 2020.11.4 - Denial of Service",
      "descriptions": [
        {
          "lang": "en",
          "value": "aSc TimeTables 2020.11.4 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the Subject title field with a large buffer. Attackers can generate a 1000-character buffer and paste it into the Subject title to trigger an application crash and potential instability."
        }
      ],
      "affected": [
        {
          "vendor": "asc Applied Software Consultants",
          "product": "aSc TimeTables",
          "versions": [
            {
              "version": "2020.11.4",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
              "cweId": "CWE-120",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.exploit-db.com/exploits/48133",
          "name": "ExploitDB-48133",
          "tags": [
            "exploit"
          ]
        },
        {
          "url": "https://www.asctimetables.com/#!/home",
          "name": "Vendor Homepage",
          "tags": [
            "product"
          ]
        },
        {
          "url": "https://www.vulncheck.com/advisories/asc-timetables-denial-of-service",
          "name": "VulnCheck Advisory: aSc TimeTables 2020.11.4 - Denial of Service",
          "tags": [
            "third-party-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS"
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Ismael Nava",
          "type": "finder"
        }
      ]
    }
  }
}