PLANET GS-4210-16P2S Command Injection via dispatcher.cgi web_smtp_test_post (CVE-2026-75123) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-75123

PLANET GS-4210-16P2S Command Injection via dispatcher.cgi web_smtp_test_post

Answer in brief

CVE-2026-75123 records a Unknown severity vulnerability in PLANET GS-4210-16P2S Command Injection via dispatcher.cgi web_smtp_test_post. The current sources do not mark it as known exploited. The current feed maps PLANET Technology Corp./PLANET GS-4210-16P2S (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 28, 2026Updated Aug 28, 2026Source checked Aug 28, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 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: Available

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 PLANET Technology Corp./PLANET GS-4210-16P2S (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
PLANET Technology Corp./PLANET GS-4210-16P2Sgeneric	>=0 <3.441b260626	3.441b260626

Recommended response

Check inventory. Check lockfiles and deployed manifests for PLANET Technology Corp./PLANET GS-4210-16P2S.
Review the reported fix. Update PLANET Technology Corp./PLANET GS-4210-16P2S to 3.441b260626 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 28, 2026

Sources and claim methodology

Upstream source description

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The web_smtp_test_post handler incorporates a caller-supplied SMTP server value directly into a shell command without sanitization. A remote attacker with administrator web credentials can send a crafted SMTP server value to execute arbitrary operating-system commands on the device.

Quoted source text, attributed separately from HOL analysis.