PLANET Technology Corp. PLANET GS-4210-16P2S up to 3.441b260625 Web Management Interface dispatcher.cgi _readHttpParam stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k1.12

Summaryinfo

A vulnerability was found in PLANET Technology Corp. PLANET GS-4210-16P2S up to 3.441b260625 and classified as critical. Affected is the function _readHttpParam of the file dispatcher.cgi of the component Web Management Interface. Such manipulation leads to stack-based overflow. This vulnerability is referenced as CVE-2026-75124. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in PLANET Technology Corp. PLANET GS-4210-16P2S up to 3.441b260625. It has been rated as critical. Affected by this issue is the function _readHttpParam of the file dispatcher.cgi of the component Web Management Interface. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability. CVE summarizes:

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.

The advisory is available at planet.com.tw. This vulnerability is handled as CVE-2026-75124 since 08/17/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 3.441b260626 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PLANET GS-4210-16P2S 3.441b260626

Timelineinfo

08/17/2026 CVE reserved
08/28/2026 +11 days Advisory disclosed
08/28/2026 +0 days VulDB entry created
08/28/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: planet.com.tw
Status: Confirmed

CVE: CVE-2026-75124 (🔒)
GCVE (CVE): GCVE-0-2026-75124
GCVE (VulDB): GCVE-100-396890

Entryinfo

Created: 08/28/2026 22:55
Changes: 08/28/2026 22:55 (77)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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