TI-2022-21800 Aliases CVE-2022-44373 GHSA-6r4x-cgfq-6wg5

A stack overflow vulnerability exists in TrendNet Wireless AC Easy-Upgrader TEW-820AP…

HIGH 73CWE-787Published 2022-12-07 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A stack overflow vulnerability exists in TrendNet Wireless AC Easy-Upgrader TEW-820AP (Version v1.0R, firmware version 1.01.B01) which may result in remote code execution.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01563 75th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:trendnet:tew-820ap_firmware:1.01.b01:::::::*	1.01.b01	Vulnerable	TRENDnet
cpe:2.3:h:trendnet:tew-820ap:1.0r:::::::*	1.0r	Running on	TRENDnet

cpe:2.3:o:trendnet:tew-820ap_firmware:1.01.b01:*:*:*:*:*:*:* Versions 1.01.b01 Vulnerable ·TRENDnet
cpe:2.3:h:trendnet:tew-820ap:1.0r:*:*:*:*:*:*:* Versions 1.0r Running on ·TRENDnet

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-44373
2026-10-03 Alias added: GHSA-6r4x-cgfq-6wg5

References

Exploit 1

https://github.com/johnawm/vulner-box/blob/master/TRENDNet/TEW-820AP/02/README.md

TI-2024-34076 The boa httpd of Trendnet TEW-820AP 1.01.B01 has a stack overflow vulnerability in… CVSS 3.1CRITICAL 9.8
TI-2023-09856 TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R, firmware version 1.01.B01 was… CVSS 3.1HIGH 8.8
TI-2023-09855 TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R, firmware version 1.01.B01 was… CVSS 3.1HIGH 8.8
TI-2023-09854 TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R, firmware version 1.01.B01 was… CVSS 3.1HIGH 8.8
TI-2023-09857 TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R, firmware version 1.01.B01 was… CVSS 3.1HIGH 8.8
TI-2022-23296 TrendNet Wireless AC Easy-Upgrader TEW-820AP v1.0R, firmware version 1.01.B01 was… CVSS 3.1HIGH 8.8

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences