CVE-2020-36997

BacklinkSpeed 2.4 contains a buffer overflow vulnerability that allows attackers to corrupt the Structured Exception Handler (SEH) chain through malicious file import. Attackers can craft a specially designed payload file to overwrite SEH addresses, potentially executing arbitrary code and gaining control of the application.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://www.dummysoftware.com
http://www.dummysoftware.com/backlinkspeed.html
https://www.exploit-db.com/exploits/48726
https://www.vulncheck.com/advisories/backlinkspeed-buffer-overflow-poc-seh

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) BacklinkSpeed 2.4 contiene una vulnerabilidad de desbordamiento de búfer que permite a los atacantes corromper la cadena del Structured Exception Handler (SEH) a través de la importación de archivos maliciosos. Los atacantes pueden crear un archivo de carga útil especialmente diseñado para sobrescribir las direcciones SEH, ejecutando potencialmente código arbitrario y obteniendo el control de la aplicación.

29 Jan 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-29 15:16

Updated : 2026-04-15 00:35

NVD link : CVE-2020-36997

Mitre link : CVE-2020-36997

CVE.ORG link : CVE-2020-36997

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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