Stack Buffer Overflow in D-Link DIR-809 Devices
CVE-2021-33274

9.8CRITICAL

Key Information:

Vendor

D-Link
Status
Dir-809 Firmware
Vendor
CVE Published:
1 December 2021

What is CVE-2021-33274?

The D-Link DIR-809 router contains a stack buffer overflow vulnerability found in the function FUN_80040af8 within the /formWlanSetup component. This flaw can be exploited by sending specially crafted POST requests to the device, potentially leading to unauthorized access or control over the device's functionality. Users are encouraged to upgrade to the latest firmware version to mitigate this security risk.

References

https://www.dlink.com/en/security-bulletin/
x_refsource_MISC
https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR8...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.