CVE-2026-116504: TOTOLINK A950RG (High, CVSS 8.6)

Remote Attacker
CVE-2026-116504HighTOTOLINK A950RG
CVSS
8.6 High (v4.0)
EPSS
1.5% chance of exploitation in the next 30 days (higher than 74.8% of CVEs)
Exploited in the wild
Not on CISA’s KEV list
Public exploit
None reported in public exploit databases
Weakness
CWE-74, CWE-77
Vector
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
Published
Oct 26, 2026

What it is

A vulnerability has been found in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This affects the function setCloudUpgradeFW of the file lib/cste_modules/upgrade.so of the component Cloud Upgrade. The manipulation of the argument FileName leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Description from the National Vulnerability Database.

What to do

Check whether you run TOTOLINK A950RG, then apply the vendor’s fix or mitigation from the advisories below.

Sources: NVD, FIRST EPSS, CISA KEV, and public exploit databases (availability only). ThreatRoundup reports whether public exploit code exists but never links to it: fake proof-of-concepts that infect security researchers are common. This page updates automatically.