CVE-2021-40284: dlink dsl-3782_firmware Classic Buffer Overflow

Vulnerability summary

CVE-2021-40284 is a medium (CVSS 6.8) Classic Buffer Overflow vulnerability in dlink dsl-3782_firmware. EPSS estimates a 2.63% chance of exploitation in the next 30 days, higher than 85.2% of scored vulnerabilities.

Timeline

1. 09-09-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface "/cgi-bin/New_GUI/Igmp.asp". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.