CVE-2026-116504

CRITICAL 9.9

TOTOLINK A950RG Cloud Upgrade upgrade.so setCloudUpgradeFW command injection

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	totolink
Product	a950rg
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / A950RG

4.1.2cu.5268_B20221104

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/426402 vuldb.com: https://vuldb.com/vuln/426402/cti vuldb.com: https://vuldb.com/cve/CVE-2026-116504 vuldb.com: https://vuldb.com/submit/1022553 gist.github.com: https://gist.github.com/H3rmesk1t/c2f2dcfdb6238a7ddb8fb0622ad52948 totolink.net: https://www.totolink.net/

Credits

🔍 LiuYijun_JX.SGCC (VulDB User)