What is CVE-2026-77945?

CVE-2026-77945 is a high-severity vulnerability in Trendnet Tew-821dap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-22.

How severe is CVE-2026-77945?

High severity. CVSS v3 base score is 7.4 out of 10.

RCE in Trendnet Tew-821dap

CVE-2026-77945

A vulnerability was found in TRENDnet TEW-821DAP 2.2.01b05. Affected is an unknown function of the file /cgi-bin/upload.cgi of the component ssi. Performing a manipulation of the argument filename results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

Affected products

Trendnet Tew-821dap — versions 2.2.01b05

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-77945?: CVE-2026-77945 is a high-severity vulnerability in Trendnet Tew-821dap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-22.
How severe is CVE-2026-77945?: High severity. CVSS v3 base score is 7.4 out of 10.