EUVD-2026-33464
GHSA-6r98-67vc-rxpc
Severity by source
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 NVD · only source for this CVE.
CVSS VectorNVD
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
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability has been found in TRENDnet TEW-432BRP 3.10B20. This affects the function formSetProtocolFilter of the file /goform/formSetProtocolFilter. Such manipulation of the argument protocol_name leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed to the public and may 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 routers allows authenticated remote attackers to corrupt memory and likely execute arbitrary code by sending a crafted protocol_name argument to the formSetProtocolFilter handler at /goform/formSetProtocolFilter. Publicly available exploit code exists on GitHub, and the vendor has confirmed the device has been end-of-life since 2009 and will not receive a fix, leaving deployed units permanently vulnerable.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the router's HTTP management interface and low-privilege authenticated access to the web UI (CVSS PR:L), specifically the ability to POST to the /goform/formSetProtocolFilter endpoint with an attacker-controlled protocol_name parameter. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are mixed but lean toward real-world risk for any organization still operating this device. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with low-privilege credentials to the router's web UI - obtained via default passwords, credential reuse, phishing, or an internal foothold - sends an HTTP POST to /goform/formSetProtocolFilter containing an overlong protocol_name value. The oversized value overflows the stack buffer in formSetProtocolFilter, overwriting the saved return address and redirecting execution to attacker-controlled shellcode, yielding code execution as the web server process (typically root on embedded routers). … |
| Remediation | No vendor-released patch identified at time of analysis - TRENDnet has publicly declined to fix this device because it has been EOL since 2009. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
24 hours: Conduct network inventory scan to identify any TEW-432BRP routers still operational. …
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