CVE-2021-28842

7.5 highEPSS 1.0%

High (7.5) in trendnet. EPSS 1.0% chance of exploitation in the next 30 days.

Null Pointer Deference vulnerability exists in TRENDnet TEW-755AP 1.11B03, TEW-755AP2KAC 1.11B03, TEW-821DAP2KAC 1.11B03, and TEW-825DAP 1.11B03, which could let a remote malicious user cause a denial os service by sending the POST request to apply_cgi via action do_graph_auth without login_name key.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2021-08-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

trendnet:tew-755ap2kac_firmware
trendnet:tew-755ap_firmware
trendnet:tew-821dap2kac_firmware
trendnet:tew-825dap_firmware

References

https://github.com/zyw-200/EQUAFL/blob/main/TRENDnet%20ticket.pdf
https://github.com/zyw-200/EQUAFL/blob/main/TRENDnet%20ticket.pdf

Check your stack JSON