CVE-2026-77217
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
PLANET GS-4210-16P2S firmware before 3.441b260626 contains authenticated stack buffer overflow and null pointer dereference vulnerabilities in /cgi-bin/dispatcher.cgi. The web_radiusSrv*_post family of handlers copies the radKey, radKey_0, radDftParamKey, radName, and radIp POST parameters into fixed-size stack buffers without length validation, and additionally dereferences radName and radIp without verifying their presence in the request. A remote authenticated attacker can send crafted requests to crash the CGI process or web management service, resulting in denial of service.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PLANET Technology Corp. | PLANET GS-4210-16P2S | 0 < 3.441b260626 | affected |
Weaknesses
- CWE-121: Stack-based Buffer Overflow
- CWE-476: NULL Pointer Dereference
References
- https://www.planet.com.tw/en/support/security-advisory/10
- https://www.vulncheck.com/advisories/planet-gs-4210-16p2s-stack-buffer-overflow-and-null-pointer-dereference-via-dispatcher-cgi-radius-handlers
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