by Kastro
Paper/Archive/CVE-2026-121597

CVE-2026-121597

TOTOLINK A950RG — TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflow

CVSS 9.9
critical.is priorityof 100
30
CVSS 9.9 (CNA)9.9 / 10 × 3029.7Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
A950RG4.1.2cu.5268_B20221104–CNA

Scores by source

VulDB (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.9CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

References

writeupvuldb.com/vuln/430439refvuldb.com/vuln/430439/ctiwriteupvuldb.com/cve/CVE-2026-121597writeupvuldb.com/submit/1022558exploitgist.github.com/H3rmesk1t/49d6ccded59379651568e0bdc6b5624creftotolink.net