CVE-2026-75124

PLANET GS-4210-16P2S V3 Memory Corruption via dispatcher.cgi _readHttpParam

HIGH
7.5
CVSS Score
Published: August 28, 2026 at 03:32 PM UTC
Updated: September 8, 2026 at 08:39 PM UTC
1 product affected across 1 vendorGS-4210-16P2S

Using PLANET GS-4210-16P2S by PLANET Technology Corp.?

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

PLANET GS-4210-16P2S firmware before 3.441b260626 contains a pre-authentication memory corruption vulnerability in the web management interface where the _readHttpParam function copies an oversized HTTP query string without guaranteeing NUL termination, allowing parse_query_string to process attacker-controlled data into a fixed-size stack buffer. An unauthenticated remote attacker can send an oversized GET request to dispatcher.cgi to cause denial of service of the web management interface and potentially trigger memory corruption.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.441b260626
Affected range stops below 3.441b260626, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-120

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