CVE-2026-4172

CVE-2026-4172 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Description

A vulnerability was detected in TRENDnet TEW-632BRP 1.010B32. This affects an unknown part of the file /ping_response.cgi of the component HTTP POST Request Handler. The manipulation of the argument ping_ipaddr results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-4172?
A vulnerability was detected in TRENDnet TEW-632BRP 1.010B32. This affects an unknown part of the file /ping_response.cgi of the component HTTP POST Request Handler. The manipulation of the argument ping_ipaddr results in stack-based buffer overflow. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-4172?
CVE-2026-4172 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-4172 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4172?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-4172 have an EU (EUVD) identifier?
Yes. CVE-2026-4172 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12218.
When was CVE-2026-4172 published?
CVE-2026-4172 was published on 2026-03-16 and last updated on 2026-06-17.

References

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

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