Cyber Resilience

CVE-2021-28843

High

Published: 10 August 2021

Published
10 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0034 56.8th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-28843 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Trendnet Tew-755Ap Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 43.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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 with an unknown action name.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

trendnet
tew-755ap firmware
1.11b03
trendnet
tew-755ap2kac firmware
1.11b03
trendnet
tew-821dap2kac firmware
1.11b03
trendnet
tew-825dap firmware
1.11b03

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References