CVE-2021-28844

HIGH
7.5
CVSS Score
Published: August 10, 2021 at 06:54 PM UTC
Updated: June 17, 2026 at 03:46 AM UTC
8 products affected across 1 vendorTew 755AP FirmwareTew 755AP2KAC FirmwareTew 821DAP2KAC Firmware

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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%

Description

Null Pointer Dereference vulnerability exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03 by sending the POST request to apply_cgi via a do_graph_auth action without a session_id key.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

trendnet-tew-755ap (same device)
trendnet-tew-755ap2kac (same device)
trendnet-tew-821dap2kac (same device)
trendnet-tew-825dap (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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