CVE-2026-77218

PLANET GS-4210-16P2S firmware before 3.441b260626 contains authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi. The webloginfirstpost handler copies the usrPass POST parameter into a fixed-size stack buffer without length validation, the websysenablePasswdpost handler...

CVE-2026-75124

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 parsequerystring to process...

CVE-2026-77218

PLANET GS-4210-16P2S firmware before 3.441b260626 is affected by three authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi. The web_login_first_post, web_sys_enablePasswd_post, and web_sys_localUser_post handlers each copy POST parameters (usrPass, enbPass, usrName) int...

CVE-2026-77218 PLANET GS-4210-16P2S Stack Buffer Overflow via dispatcher.cgi Credential Handlers

PLANET GS-4210-16P2S firmware before 3.441b260626 contains authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi. The webloginfirstpost handler copies the usrPass POST parameter into a fixed-size stack buffer without length validation, the websysenablePasswdpost handler...

CVE-2026-77217

PLANET GS-4210-16P2S firmware prior to 3.441b260626 contains authenticated stack buffer overflow and null pointer dereference vulnerabilities in /cgi-bin/dispatcher.cgi. The web_radiusSrv*_post handlers copy the radKey , radKey_0 , radDftParamKey , radName , and radIp POST parameters into fixed-s...

CVE-2026-75126 PLANET GS-4210-16P2S Stack Buffer Overflow via dispatcher.cgi Standard Handlers

PLANET GS-4210-16P2S firmware before 3.441b260626 contains multiple authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi. The following handlers copy attacker-controlled POST parameters into fixed-size stack buffers without length validation:...

CVE-2026-75126

PLANET GS-4210-16P2S firmware prior to 3.441b260626 contains multiple authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi . Numerous standard handlers (covering VLAN, PoE, SNMPv3, ACL, STP, TAC+, DHCP, and other functions) copy attacker-controlled POST parameters into f...

EUVD-2026-67786

PLANET GS-4210-16P2S firmware before 3.441b260626 contains multiple authenticated stack buffer overflow vulnerabilities in /cgi-bin/dispatcher.cgi. The following handlers copy attacker-controlled POST parameters into fixed-size stack buffers without length validation:...

CVE-2026-75125 PLANET GS-4210-16P2S Null Pointer Dereference DoS via dispatcher.cgi web_poe_alive_rmtip_post

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated null pointer dereference vulnerability in /cgi-bin/dispatcher.cgi. The webpoealivermtippost handler dereferences the rmtIP parameter without verifying its presence. A remote authenticated attacker can send a crafted reque...

CVE-2026-75125

PLANET GS-4210-16P2S managed PoE switches running firmware before 3.441b260626 are affected by an authenticated null pointer dereference in /cgi-bin/dispatcher.cgi. Specifically, the web_poe_alive_rmtip_post handler dereferences the rmtIP parameter without checking for its presence. A remote auth...

EUVD-2026-67785

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated null pointer dereference vulnerability in /cgi-bin/dispatcher.cgi. The webpoealivermtippost handler dereferences the rmtIP parameter without verifying its presence. A remote authenticated attacker can send a crafted reque...

CVE-2026-75124 PLANET GS-4210-16P2S Memory Corruption via dispatcher.cgi _readHttpParam

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 parsequerystring to process...

CVE-2026-75124

PLANET GS-4210-16P2S firmware prior to 3.441b260626 contains a pre-authentication memory corruption vulnerability in the web management interface. The root cause is in the _readHttpParam function, which copies an oversized HTTP query string without guaranteeing NUL termination, allowing parse_que...

EUVD-2026-67783

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The websmtptestpost handler incorporates a caller-supplied SMTP server value directly into a shell command without sanitization. A remote attacker with...

CVE-2026-75123

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The web_smtp_test_post handler incorporates a caller-supplied SMTP server value directly into a shell command without sanitization, allowing a remote attacker...

CVE-2026-75123 PLANET GS-4210-16P2S Command Injection via dispatcher.cgi web_smtp_test_post

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The websmtptestpost handler incorporates a caller-supplied SMTP server value directly into a shell command without sanitization. A remote attacker with...

CVE-2026-75121 PLANET GS-4210-16P2S Command Injection via dispatcher.cgi web_vlan_membership_edit_dialog_post

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The webvlanmembershipeditdialogpost handler incorporates the memberTags POST parameter into a shell command without sanitization. A remote authenticated...

CVE-2026-75121

PLANET GS-4210-16P2S managed switches with firmware prior to 3.441b260626 are affected by an authenticated OS command injection in /cgi-bin/dispatcher.cgi. The web_vlan_membership_edit_dialog_post handler incorporates the memberTags POST parameter directly into a shell command without sanitizatio...

EUVD-2026-67781

PLANET GS-4210-16P2S firmware before 3.441b260626 contains an authenticated OS command injection vulnerability in /cgi-bin/dispatcher.cgi. The webvlanmembershipeditdialogpost handler incorporates the memberTags POST parameter into a shell command without sanitization. A remote authenticated...