CVE-2026-116508
CriticalCVSS 10.0Summary
TOTOLINK A950RG 4.1.2cu.5268_B20221104 contains a stack-based buffer overflow in function sub_402340 of infostat.cgi (Device-Information CGI component). Manipulating the CONTENT_LENGTH argument causes overflow, and the exploit is publicly available.
Risk Assessment
A remote attacker can exploit the vulnerability to execute code or cause a denial of service, potentially taking control of the router and network.
Recommendation
Upgrade TOTOLINK A950RG firmware to the latest version if available, or apply mitigations. Restrict access to the management interface from untrusted networks.
Other vulnerabilities in TOTOLINK A950RG
See all- CVE-2026-116506Critical
In TOTOLINK A950RG version 4.1.2cu.5268_B20221104, the apmib_set function in firewall.so is vulnerable to command injection. The vulnerability can be exploited remotely, and a public exploit is available.
- CVE-2026-116505Critical
In TOTOLINK A950RG version 4.1.2cu.5268_B20221104, the getDeviceInfo function in /var/lib/misc/udhcpd.leases is vulnerable to command injection via manipulation of the MAC address argument. The attack can be launched remotely, and the exploit is publicly available.
- CVE-2026-116504Critical
In TOTOLINK A950RG version 4.1.2cu.5268_B20221104, the setCloudUpgradeFW function in lib/cste_modules/upgrade.so is vulnerable to command injection via manipulation of the FileName argument. The attack can be initiated remotely, and the exploit has been publicly disclosed.
- CVE-2026-114575Critical
In TOTOLINK A950RG 4.1.2cu.5268_B20221104, the UploadCustomModule function in lib/cste_modules/product.so is vulnerable to command injection via manipulation of the FileMd5 argument. The attack can be launched remotely, and the exploit has been published and may be used.
Original NVD description (English source)
A security flaw has been discovered in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected by this issue is the function sub_402340 of the file infostat.cgi of the component Device-Information CGI. Performing a manipulation of the argument CONTENT_LENGTH results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS