Which versions of TRENDnet TEW-432BRP are affected by EUVD-2026-33505?

Organizations deploying TRENDnet TEW-432BRP routers are exposed to a remotely exploitable vulnerability with publicly available attack code; the vendor ceased support in 2009 and has declined to…

Is there a public PoC exploit available for EUVD-2026-33505?

Yes, a public proof-of-concept exploit is available for EUVD-2026-33505. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate EUVD-2026-33505?

Within 24 hours: Conduct network inventory to identify and document all TRENDnet TEW-432BRP 3.10B20 router instances and confirm internet exposure. Within 7 days: Implement firewall rules to restrict untrusted inbound access to these devices and apply network segmentation; disable remote management features. Within 30 days: Complete replacement with supported router models (current vendor firmware required) receiving active security updates.

TRENDnet TEW-432BRP EUVD-2026-33505

Q: What is the CVSS score of EUVD-2026-33505?

EUVD-2026-33505 has a CVSS 4.0 base score of 7.4 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

| CVE-2026-10183 HIGH

Stack-based Buffer Overflow (CWE-121)

2026-05-31 VulDB

GHSA-73fj-3962-8jh6

Buffer Overflow Stack Overflow Tew 432Brp

7.4

CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY

7.4 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (VulDB) · only source for this CVE.

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Updated

May 31, 2026 - 14:28 vuln.today

v3 (cvss_changed)

Analysis Updated

May 31, 2026 - 14:28 vuln.today

v2 (cvss_changed)

Re-analysis Queued

May 31, 2026 - 14:22 vuln.today

cvss_changed

CVSS changed

May 31, 2026 - 14:22 NVD

8.8 (HIGH) 7.4 (HIGH)

Analysis Generated

May 31, 2026 - 13:50 vuln.today

DescriptionCVE.org

A vulnerability was identified in TRENDnet TEW-432BRP 3.10B20. This affects the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument enrollee leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor explains: "This product has been EOL for 15 years (since 2009). As the item has been EOL for such a long time, we are not able to replicate or fix any vulnerabilities." This vulnerability only affects products that are no longer supported by the maintainer.

AnalysisAI

Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 router allows remote attackers with low privileges to corrupt memory via the enrollee parameter in the formWlanSetup handler at /goform/formWlanSetup. Publicly available exploit code exists, and the vendor has explicitly declined to patch because the device reached end-of-life in 2009. No CISA KEV listing is present, but the combination of public PoC, network-reachable attack surface, and permanent unpatched status makes any internet-exposed unit a standing risk.

Technical ContextAI

The TEW-432BRP is a legacy 802.11g consumer wireless router whose web-administration interface uses /goform/* CGI-style handlers implemented in the embedded HTTP server (a common Boa/GoAhead-derived pattern in this device class). The vulnerable code path is formWlanSetup, which processes WPS/WLAN configuration parameters; the 'enrollee' argument is copied into a fixed-size stack buffer without bounds checking, the textbook CWE-121 (Stack-based Buffer Overflow) condition. On the MIPS/ARM SoCs typical for this generation of TRENDnet hardware, no modern mitigations (ASLR, stack canaries, NX) are present in the firmware, so overflow of a return address or saved frame pointer can yield direct control of execution in the httpd process, which historically runs as root.

RemediationAI

No vendor-released patch identified at time of analysis - TRENDnet has publicly stated it will not produce a fix because the TEW-432BRP has been EOL since 2009, so the only durable remediation is to decommission the device and replace it with a currently supported router. Until replacement is possible, restrict reachability to the management interface: disable WAN-side administration entirely, place the LAN-side admin interface behind an ACL that only permits a known administrative host, and segment any guest/WLAN clients off the management VLAN so the /goform/formWlanSetup endpoint cannot be reached by untrusted users - the trade-off is loss of remote-management convenience and additional network configuration overhead. Disabling WPS/wireless-setup features where the firmware allows it reduces but does not eliminate exposure, since the handler may still be reachable via other authenticated paths. Reference: vendor and PoC discussion at https://vuldb.com/cve/CVE-2026-10183 and the exploit details at https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_20/20.md.