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HighPublic exploit

Stack-based Buffer Overflow in TRENDnet TEW-432BRP formSetMACFilter

IdentifiersCVE-2026-10119CWE-121· Stack-based Buffer Overflow

CVE-2026-10119 is a stack-based buffer overflow vulnerability in TRENDnet TEW-432BRP firmware version 3.10B20. The flaw is in the formSetMACFilter function exposed via the /goform/formSetMACFilter endpoint. According to the provided content, manipulation of the filter_name argument can overflow a stack buffer, making the condition remotely exploitable over the network. Public disclosure and exploit availability have been reported. The affected product is end-of-life and no longer supported by the vendor.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can crash the affected device and may allow full compromise of the router, including potential remote code execution in the context of the vulnerable service. The supplied scoring and advisory context indicate high impact to confidentiality, integrity, and availability. Because the target is a network device, compromise could also enable traffic interception, configuration tampering, persistence on the device, or use of the router as a pivot point within the local network.

Mitigation

If you can’t patch tonight, do this now.

If immediate replacement is not possible, reduce exposure by disabling remote administration if enabled, restricting access to the management interface to trusted hosts only, placing the device behind additional network controls, and isolating it from untrusted networks and the public Internet. Monitor for unauthorized configuration changes and signs of device instability or compromise. These are compensating controls only; they do not eliminate the underlying flaw.

Remediation

Patch, then assume compromise.

No vendor patch is available. TRENDnet stated that the TEW-432BRP has been end-of-life since 2009 and that it cannot replicate or fix the vulnerability. The appropriate remediation is to decommission and replace affected TEW-432BRP devices running 3.10B20 with supported hardware receiving security updates.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
TrendnetTew-432brpapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

8 SOURCESView more in app
What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity7

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-10119
NVD
nvd.nist.gov/vuln/detail/CVE-2026-10119
MITRE CWE · CWE-121
Stack-based Buffer Overflow
github.com
github.com/wudipjq/my_vuln/blob/main/TRENDnet/vuln_6/6.md
vuldb.com
vuldb.com/submit/814761
vuldb.com
vuldb.com/vuln/367296
vuldb.com
vuldb.com/vuln/367296/cti