CVE-2026-75124
PLANET GS-4210-16P2S V3 Memory Corruption via dispatcher.cgi _readHttpParam
- State
- Published
- Severity
- 8.7 High
- Published
- Aug 28, 2026
- Updated
- Sep 1, 2026
- Reserved
- Aug 17, 2026
Description
PLANET GS-4210-16P2S V3 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Products
| Product | Versions |
|---|---|
PLANET GS-4210-16P2S V3PLANET Technology Corp. |
|
References
- Vendor Advisoryvendor-advisorypatch
- https://www.vulncheck.com/advisories/planet-gs-4210-16p2s-memory-corruption-via-dispatcher-cgi-readhttpparamthird-party-advisory
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