CVE-2026-116504

TOTOLINK A950RG Cloud Upgrade upgrade.so setCloudUpgradeFW command injection

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.

Affected

TOTOLINK · A950RG

CVSS v4.0 VULDB

8.6 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULDB

9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0 VULDB

9.0 HIGHAV:N/AC:L/Au:S/C:C/I:C/A:C

EPSS

1.55% chance of exploitation in the next 30 days, 75th percentile

Published

2026-10-26

Updated

2026-10-27

Proof-of-concept exploits (1)

• https://gist.github.com/H3rmesk1t/c2f2dcfdb6238a7ddb8fb0622ad52948find archive

CVE references

• https://vuldb.com/cve/CVE-2026-116504REFERENCE
• https://vuldb.com/submit/1022553REFERENCE
• https://vuldb.com/vuln/426402REFERENCE
• https://vuldb.com/vuln/426402/ctiREFERENCE
• https://www.totolink.netREFERENCE

References

• CVE Record
• NVD entry