CVE-2026-77217PLANET GS-4210-16P2S V3 Stack Buffer Overflow and NULL Pointer Dereference via dispatcher.cgi RADIUS Handlers
Updated under an hour ago ()
Does this affect you?
It affects PLANET Technology Corp. PLANET GS-4210-16P2S V3. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
PLANET GS-4210-16P2S V3 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.
- CVSS
- 4.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-121, CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
PLANET Technology Corp. PLANET GS-4210-16P2S V3 planet_technology:planet_gs_4210_16p2s_v3 (from the name) | before 3.441b260626 | CNA record |
References
- https://www.planet.com.tw/en/support/security-advisory/10vendor-advisory, patch
- https://www.vulncheck.com/advisories/planet-gs-4210-16p2s-stack-buffer-overflow-and-null-pointer-dereference-via-dispatcher-cgi-radius-handlersthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.