Stack Buffer Overflow in D-Link DIR-809 Devices
CVE-2021-33266

9.8CRITICAL

Key Information:

Vendor

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

What is CVE-2021-33266?

A stack buffer overflow vulnerability exists in D-Link DIR-809 devices due to improper handling of crafted POST requests in the function FUN_8004776c located in /formVirtualApp. This flaw allows attackers to exploit the device by sending specially crafted input, potentially resulting in unauthorized code execution and compromising the integrity of the device. Users are advised to review firmware security advisories and apply any available patches to mitigate risks.

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

.