TRENDnet TEW-821DAP ssi upload.cgi command injection (CVE-2026-77945) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-77945

TRENDnet TEW-821DAP ssi upload.cgi command injection

Answer in brief

CVE-2026-77945 records a Unknown severity vulnerability in TRENDnet TEW-821DAP ssi upload.cgi command injection. The current sources do not mark it as known exploited. The current feed maps TRENDnet/TEW-821DAP (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 22, 2026Updated Aug 22, 2026Source checked Aug 22, 2026First seen by HOL Aug 22, 2026Material review Aug 22, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TRENDnet/TEW-821DAP (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
TRENDnet/TEW-821DAPgeneric	2.2.01b05	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for TRENDnet/TEW-821DAP.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 22, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.