Stack Buffer Overflow in D-Link DIR-809 Devices
CVE-2021-33271

9.8CRITICAL

Key Information:

Vendor

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

What is CVE-2021-33271?

D-Link DIR-809 devices are susceptible to a stack buffer overflow vulnerability, found in the function sub_80046EB4 in /formSetPortTr. This critical flaw can be exploited through a specifically crafted POST request, potentially allowing attackers to execute arbitrary code or disrupt device functionality. Users are advised to update their firmware to safeguard against this vulnerability.

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

.