FKIE_CVE-2019-25569

Vulnerability from fkie_nvd - Published: 2026-03-21 13:16 - Updated: 2026-03-24 20:43
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service.
References
disclosure@vulncheck.comhttps://realterm.sourceforge.io/Product
disclosure@vulncheck.comhttps://sourceforge.net/projects/realterm/files/Product
disclosure@vulncheck.comhttps://www.exploit-db.com/exploits/46391Exploit, Third Party Advisory, VDB Entry
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/realterm-serial-terminal-seh-overflow-crashThird Party Advisory
Impacted products
Vendor Product Version
crun realterm 2.0.0.70
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              "criteria": "cpe:2.3:a:crun:realterm:2.0.0.70:*:*:*:*:*:*:*",
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      "value": "RealTerm Serial Terminal 2.0.0.70 contains a stack-based buffer overflow vulnerability in the Echo Port field that allows local attackers to crash the application by triggering a structured exception handler (SEH) chain corruption. Attackers can craft a malicious input string with 268 bytes of padding followed by SEH overwrite values and paste it into the Port field to cause denial of service."
    },
    {
      "lang": "es",
      "value": "RealTerm Serial Terminal 2.0.0.70 contiene una vulnerabilidad de desbordamiento de b\u00fafer basado en pila en el campo Echo Port que permite a atacantes locales bloquear la aplicaci\u00f3n al desencadenar una corrupci\u00f3n de la cadena de gestores de excepciones estructuradas (SEH). Los atacantes pueden crear una cadena de entrada maliciosa con 268 bytes de relleno seguida de valores de sobrescritura de SEH y pegarla en el campo Port para causar denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2019-25569",
  "lastModified": "2026-03-24T20:43:05.600",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
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          "Recovery": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
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          "baseSeverity": "MEDIUM",
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          "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",
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          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/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",
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          "vulnAvailabilityImpact": "HIGH",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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