A buffer overflow vulnerability exists in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The issue resides in the setRadvdCfg interface of the /lib/cste_modules/ipv6.so module. The function fails to properly validate the length of the user-controlled radvdinterfacename parameter, allowing remote attackers to trigger a stack buffer overflow.
References
| Link | Resource |
|---|---|
| https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-ipv6-setRadvdCfg-radvdinterfacename-buffer.md | Exploit Third Party Advisory |
Configurations
Configuration 1 (hide)
| AND |
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History
10 Feb 2026, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Totolink a950rg Firmware
Totolink a950rg Totolink |
|
| CPE | cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5204_b20210112:*:*:*:*:*:*:* cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:* |
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| References | () https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-ipv6-setRadvdCfg-radvdinterfacename-buffer.md - Exploit, Third Party Advisory |
05 Feb 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 9.8 |
| CWE | CWE-120 |
03 Feb 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-02-03 18:16
Updated : 2026-02-10 14:15
NVD link : CVE-2025-67188
Mitre link : CVE-2025-67188
CVE.ORG link : CVE-2025-67188
JSON object : View
Products Affected
totolink
- a950rg
- a950rg_firmware
CWE
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')