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 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
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability was determined in TRENDnet TEW-432BRP 3.10B20. Affected by this vulnerability is the function formSetRoute of the file /goform/formSetRoute. This manipulation of the argument ip/mask/gateway causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized. 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 router firmware 3.10B20 allows authenticated remote attackers to corrupt memory by sending crafted ip, mask, or gateway parameters to the formSetRoute handler at /goform/formSetRoute, potentially achieving arbitrary code execution on the device. Publicly available exploit code exists (disclosed via VulDB and a GitHub PoC), and because the product has been end-of-life since 2009 the vendor has explicitly declined to issue a fix. No active exploitation has been confirmed via CISA KEV at time of analysis.
Technical ContextAI
The flaw resides in the formSetRoute function exposed through the router's web administration goform interface (/goform/formSetRoute), a common CGI-style endpoint pattern in legacy SOHO routers. CWE-121 (Stack-based Buffer Overflow) indicates that user-supplied values for the ip, mask, and gateway HTTP parameters are copied into fixed-size stack buffers without proper length validation, allowing an attacker to overwrite the saved return address or adjacent stack frame data. The affected CPE cpe:2.3:a:trendnet:tew-432brp:*:*:*:*:*:*:*:* identifies the TRENDnet TEW-432BRP 802.11g wireless router, a consumer device whose firmware (typically MIPS-based with limited mitigations such as no ASLR or stack canaries) makes such overflows historically reliable for code execution.
RemediationAI
No vendor-released patch identified at time of analysis, and none will be issued because the device has been EOL since 2009. The only durable remediation is to decommission and replace the TEW-432BRP with a currently-supported router that receives security updates. Until replacement, compensating controls include disabling remote/WAN administration so /goform/formSetRoute is not reachable from the Internet (trade-off: loss of remote management convenience), restricting LAN access to the admin interface via firewall rules or VLAN segmentation so only a trusted management host can reach the web UI (trade-off: additional network configuration overhead), enforcing strong unique admin credentials and changing the default password to raise the PR:L barrier against opportunistic abuse, and monitoring HTTP POST requests to /goform/formSetRoute for anomalous ip/mask/gateway field lengths. Public exploit details and the technical write-up are available at https://github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_3/3.md and https://vuldb.com/vuln/367148.
More in Tew 432Brp
View allStack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 router allows remote attackers with low privileges to corrupt
Stack-based buffer overflow in TRENDnet TEW-432BRP wireless router firmware 3.10B20 allows remote authenticated attacker
Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 router firmware allows authenticated remote attackers to corr
Stack-based buffer overflow in TRENDnet TEW-432BRP router (firmware 3.10B20) allows authenticated remote attackers to co
Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 wireless router allows authenticated remote attackers to corr
Stack-based buffer overflow in the TRENDnet TEW-432BRP wireless router (firmware 3.10B20) allows authenticated remote at
Stack-based buffer overflow in the TRENDnet TEW-432BRP 3.10B20 wireless router's web interface allows authenticated remo
Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 router firmware allows authenticated remote attackers to corr
Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 routers allows authenticated remote attackers to corrupt memo
Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 router firmware allows remote authenticated attackers to corr
Stack-based buffer overflow in the TRENDnet TEW-432BRP wireless router (firmware 3.10B20) allows remote authenticated at
Stack-based buffer overflow in TRENDnet TEW-432BRP 3.10B20 router firmware allows authenticated remote attackers to corr
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-33322
GHSA-f6m3-35xp-mwj6