CVE-2026-121597 PUBLISHED

A weakness has been identified in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This affects the function setAppEasyWizardConfig of the file /cgi-bin/cstecgi.cgi of the component Easy Setup Wizard Handler. Executing a manipulation of the argument functionType can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

• LiuYijun_JX.SGCC (VulDB User) reporter

• VDB-430439 | TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflow
• VDB-430439 | CTI Indicators (IOB, IOC, IOA)
• CVE-2026-121597 | CVE Analysis and Report
• Submit #1022558 | TOTOLINK A950RG V4.1.2cu.5268_B20221104 Stack Buffer Overflow
• https://gist.github.com/H3rmesk1t/49d6ccded59379651568e0bdc6b5624c
• https://www.totolink.net/

• Stack-based Buffer Overflow CWE
• Memory Corruption CWE