What is CVE-2026-5350?

CVE-2026-5350 is a high-severity vulnerability in Trendnet Tew-657brm, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-04-02.

How severe is CVE-2026-5350?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Trendnet Tew-657brm

CVE-2026-5350

A security flaw has been discovered in Trendnet TEW-657BRM 1.00.1. The impacted element is the function update_pcdb of the file /setup.cgi. The manipulation of the argument mac_pc_dba results in stack-based buffer overflow. The attack can…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (10.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R.

Affected products

Trendnet Tew-657brm — versions 1.00.1

Weakness classification (CWE)

References

VDB-354703 | Trendnet TEW-657BRM setup.cgi update_pcdb stack-based overflow (vdb-entry, technical-description)
VDB-354703 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #781567 | TRENDnet TEW-657BRM 1.00.1 Buffer Overflow (third-party-advisory)
github.com/panda666-888/vuls/blob/main/trendnet/tew-657brm/update_pcdb.md (exploit, patch)

Frequently asked questions

What is CVE-2026-5350?: CVE-2026-5350 is a high-severity vulnerability in Trendnet Tew-657brm, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-04-02.
How severe is CVE-2026-5350?: High severity. CVSS v3 base score is 8.8 out of 10.