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CVE-2026-121597TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflow
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.
9.4 CRITICALEPSS 0.60%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.4 | CRITICAL | 4.0VulDB (CNA) | CVSS: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 |
| 8.6 | HIGH | 4.0VulDB (CNA) | CVSS: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 |
| 9.9 | CRITICAL | 3.1VulDB (CNA) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 9.9 | CRITICAL | 3.1VulDB (CNA) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RC:R |
| 9.9 | CRITICAL | 3.0VulDB (CNA) | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RC:R |
| 9.0 | HIGH | 2.0VulDB (CNA) | AV:N/AC:L/Au:S/C:C/I:C/A:C |
| 9.0 | HIGH | 2.0VulDB (CNA) | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR |
Details
- CVE ID
- CVE-2026-121597
- Status
- Deferred
- Assigner (CNA)
- VulDB
- Published
- Nov 4, 2026
- Last modified
- 2026-11-04 00:17 UTC
Affected Products
As published by the CNA in the CVE record.
TOTOLINKA950RG1 version range
- 4.1.2cu.5268_B20221104