CVE-2026-121599

CRITICAL 9.9

TOTOLINK A950RG Multi-SSID Configuration cstecgi.cgi delWiFiMultipleConfig stack-based overflow

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected is the function setWiFiMultipleConfig/delWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi of the component Multi-SSID Configuration. The manipulation of the argument wepkey2/wepkey3 results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used.

CWE	CWE-121 CWE-119
Vendor	totolink
Product	a950rg
Published	Nov 4, 2026

Stay Ahead of the Next One

Get instant alerts for totolink a950rg

Be the first to know when new critical vulnerabilities affecting totolink a950rg are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / A950RG

4.1.2cu.5268_B20221104

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/430441 vuldb.com: https://vuldb.com/vuln/430441/cti vuldb.com: https://vuldb.com/cve/CVE-2026-121599 vuldb.com: https://vuldb.com/submit/1022561 gist.github.com: https://gist.github.com/H3rmesk1t/44673654282c9b21bc8971bab7e4b8a3 totolink.net: https://www.totolink.net/

Credits

🔍 LiuYijun_JX.SGCC (VulDB User)