EUVD-2026-33330
GHSA-8m66-492w-vpv3
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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 NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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
Lifecycle Timeline
1DescriptionCVE.org
A security flaw has been discovered in TRENDnet TEW-432BRP 3.10B20. This affects the function formSetPortTr of the file /goform/formSetPortTr. Performing a manipulation of the argument special_name results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. 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 firmware 3.10B20 allows a low-privileged remote attacker to corrupt memory via a manipulated special_name argument submitted to the /goform/formSetPortTr endpoint. The affected device reached end-of-life in 2009, and the vendor has explicitly declined to issue a patch, meaning no fix will ever be released. Publicly available exploit code exists (E:P per CVSS 4.0 vector), raising the practical risk for any deployment where this device remains internet-accessible or reachable by untrusted users.
Technical ContextAI
The TEW-432BRP is a consumer-grade SOHO wireless router whose web management interface exposes CGI-style form handlers under /goform/. The vulnerable handler formSetPortTr processes port-triggering configuration and copies user-supplied input for the special_name field into a fixed-size stack buffer without adequate bounds checking. This is a classic CWE-119 (Improper Restriction of Operations within Bounds of a Memory Buffer) - specifically a stack-based overflow - which in embedded MIPS/ARM router firmware typically allows overwriting the saved return address to redirect execution. The firmware version is 3.10B20; no CPE string was provided in the source data, but the product is unambiguously identified. Because this is embedded firmware with no OS-level memory protection (ASLR, stack canaries) common to 2009-era devices, exploitation difficulty is substantially lower than the CVSS 4.0 score of 2.1 suggests.
RemediationAI
No vendor-released patch identified at time of analysis, and the vendor has explicitly confirmed no fix will be produced due to the product's 15-year EOL status. The primary and strongly recommended remediation is to decommission and replace the TEW-432BRP immediately with a supported device. If immediate replacement is not feasible, the following compensating controls should be applied in order of priority: restrict all access to the device's web management interface to a dedicated, isolated management VLAN or trusted host IP only - this directly limits exploitation by removing network reachability of /goform/formSetPortTr; disable remote management features if available in the current firmware UI to reduce the attack surface; ensure the device is not exposed to the public internet and place it behind a firewall or NAT boundary that blocks inbound connections to the management port (typically TCP 80/443). Note that these mitigations reduce but do not eliminate risk, since the PR:L requirement means any authenticated user on the local network could still trigger the overflow. The VulDB advisory is at https://vuldb.com/vuln/367150.
Same weakness CWE-119 – Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today