Deviceways

Wireless access point

TRENDnet TEW-638APB

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Projects for this device

Replacement firmware

Replace router software with a customizable system for network controls and community packages.

Hardwarev2; V2.0R

How to get started

Follow the guide for your exact router version. The first installation may use its web interface, recovery mode or a serial connection.

Setup
Firmware replacement; route varies by router
You’ll need
Exact hardware revision, an appropriate OpenWrt release and its model-specific installation guide.
v2
V2.0R
Open hardware recordopenwrt.org
Original project github.com

v2

Device support in source
Retired; check the documented hardware and older release resources.
First installation
GUI OEM; U-Boot TFTP + serial recovery
Sources

Features & details

Check the project and hardware shown for each feature.

Device details

trendnet tew-638apb v2 — device documentation (github.com)Device details — v2 — Source documentation (openwrt.org)

Hardware revision
v2

Device details

TRENDnet TEW-638APB V2.0R — TechInfoDepot (github.com)TRENDnet TEW-638APB V2.0R — WikiDevi (github.com)

Hardware revision
V2.0R

OpenWrt · v2

OpenWrt · v2 — v2 — Source documentation (openwrt.org)

Installation routes recorded
GUI OEM, U-Boot TFTP + serial recovery
Recovery routes recorded
U-Boot TFTP + serial recovery
Availability recorded by source
Discontinued

Hardware differences

Security

Saved scan

From our saved security research.

Model advisories

Selected highlights

Prioritized by known exploitation, severity, then date.

CVE published

CVSS 7.1 (v4.0)

TEW-638APB

TRENDnet TEW-637AP/TEW-638APB HTTP Request goahead sub_41DED0 null pointer dereference

CVE-2025-2960

Affected firmware
1.2.7 1.3.0.106
Fix
Fix details in the linked record
Read VulDB CVE record
Details and sources
CVE updated

A vulnerability classified as problematic has been found in TRENDnet TEW-637AP and TEW-638APB 1.2.7/1.3.0.106. This affects the function sub_41DED0 of the file /bin/goahead of the component HTTP Request Handler. The manipulation leads to null pointer dereference. Access to the local network is required for this attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

VDB-302013 | TRENDnet TEW-637AP/TEW-638APB HTTP Request goahead sub_41DED0 null pointer dereference — TEW-638APB (vuldb.com) ↗VDB-302013 | CTI Indicators (IOB, IOC, IOA) — TEW-638APB (vuldb.com) ↗Submit #521727 | TRENDnet wi-fi access point TEW_637AP_V2_FW1.3.0.106/FW_TEW_638APB_V2_1.2.7 NULL Pointer Dereference — TEW-638APB (vuldb.com) ↗
Check more security advisories for this device · CVE.org