CVE-2021-47797

Leawo Prof. Media 11.0.0.1 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized payload in the activation keycode field. Attackers can generate a 6000-byte buffer of repeated characters to trigger an application crash when pasted into the registration interface.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.exploit-db.com/exploits/50153
https://www.leawo.org
https://www.vulncheck.com/advisories/leawo-prof-media-denial-of-service-dos-poc

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Leawo Prof. Media 11.0.0.1 contiene una vulnerabilidad de denegación de servicio que permite a los atacantes bloquear la aplicación al proporcionar una carga útil excesivamente grande en el campo del código de clave de activación. Los atacantes pueden generar un búfer de 6000 bytes de caracteres repetidos para provocar un bloqueo de la aplicación cuando se pega en la interfaz de registro.

16 Jan 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-16 00:16

Updated : 2026-06-17 04:18

NVD link : CVE-2021-47797

Mitre link : CVE-2021-47797

CVE.ORG link : CVE-2021-47797

JSON object : View

Products Affected

No product.

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2021-47797", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47797", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-16T16:01:37.663732Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.7, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"vendor": "Leawo", "product": "Leawo Prof. Media", "versions": [{"status": "affected", "version": "11.0.0.1"}]}]}], "published": "2026-01-16T00:16:23.960", "references": [{"url": "https://www.exploit-db.com/exploits/50153", "source": "disclosure@vulncheck.com"}, {"url": "https://www.leawo.org", "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/leawo-prof-media-denial-of-service-dos-poc", "source": "disclosure@vulncheck.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "Leawo Prof. Media 11.0.0.1 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized payload in the activation keycode field. Attackers can generate a 6000-byte buffer of repeated characters to trigger an application crash when pasted into the registration interface."}, {"lang": "es", "value": "Leawo Prof. Media 11.0.0.1 contiene una vulnerabilidad de denegaci\u00f3n de servicio que permite a los atacantes bloquear la aplicaci\u00f3n al proporcionar una carga \u00fatil excesivamente grande en el campo del c\u00f3digo de clave de activaci\u00f3n. Los atacantes pueden generar un b\u00fafer de 6000 bytes de caracteres repetidos para provocar un bloqueo de la aplicaci\u00f3n cuando se pega en la interfaz de registro."}], "lastModified": "2026-06-17T04:18:30.720", "sourceIdentifier": "disclosure@vulncheck.com"}