SEPTEMBER 17, 2026
Live Feed
Back to database
Case File

CVE-2026-77218

MEDIUM · CVSS 4.9 EPSS 0.41%

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The firmware of PLANET GS-4210-16P2S devices prior to version 3.441b260626 is vulnerable to authenticated stack buffer overflow issues in multiple handlers, allowing remote authenticated attackers to exploit these flaws. This can lead to denial of service by crashing the CGI process or web management service. Organizations using this firmware should prioritize patching to mitigate potential disruptions in service.

CVE
CVE-2026-77218
Severity
MEDIUM
CVSS
4.9
EPSS
0.41%

Original NVD Description

PLANET GS-4210-16P2S V3 firmware before 3.441b260626 contains authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi. The web_login_first_post handler copies the usrPass POST parameter into a fixed-size stack buffer without length validation, the web_sys_enablePasswd_post handler copies the enbPass POST parameter into a fixed-size stack buffer without length validation, and the web_sys_localUser_post handler copies the usrName and usrPass POST parameters into fixed-size stack buffers without length validation. A remote authenticated attacker can send a crafted request to crash the CGI process or web management service, resulting in denial of service.