Null Pointer Dereference Vulnerability in TRENDnet Wireless Access Points
CVE-2021-28845

7.5HIGH

Key Information:

Vendor

Trendnet

Status
Tew-755ap Firmware
Vendor
CVE Published:
10 August 2021

What is CVE-2021-28845?

A null pointer dereference vulnerability exists in various TRENDnet wireless access points, including TEW-755AP and TEW-825DAP models. The flaw allows remote attackers to trigger a denial of service situation by sending a specially crafted POST request to the apply_cgi endpoint without including a valid language key. This unhandled null pointer can crash the device, leading to interrupted service and potential downtime.

References

https://github.com/zyw-200/EQUAFL/blob/main/TRENDnet%20ti...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.