CVE-2026-10123

CVE-2026-10123 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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 found in TRENDnet TEW-432BRP 3.10B20. This impacts the function formSetDomainFilter of the file /goform/formSetDomainFilter. Performing a manipulation of the argument blocked_domain/permitted_domain/blocked_domain_list/permitted_domain_list results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could 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.

Frequently asked questions

What is CVE-2026-10123?
A vulnerability was found in TRENDnet TEW-432BRP 3.10B20. This impacts the function formSetDomainFilter of the file /goform/formSetDomainFilter. Performing a manipulation of the argument blocked_domain/permitted_domain/blocked_domain_list/permitted_domain_list results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could 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.
How severe is CVE-2026-10123?
CVE-2026-10123 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-10123 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-10123?
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-2026-10123 have an EU (EUVD) identifier?
Yes. CVE-2026-10123 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33465.
When was CVE-2026-10123 published?
CVE-2026-10123 was published on 2026-05-30 and last updated on 2026-06-17.

References

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

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