Critical severity9.8NVD Advisory· Published May 25, 2026· Updated May 26, 2026

CVE-2026-9456

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enabled results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Totolink/A8000RUllm-fuzzy
Range: 7.1cu.643_b20200521

Patches

Vulnerability mechanics

References

News mentions

Totolink A8000RU: 24 Critical OS Command Injection CVEs Disclosed in Single Batch
Vypr Intelligence · May 25, 2026

Severity

CriticalCVSS v3.1

9.8/ 10

CVSS v48.9

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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

Attack vector: Network
Complexity: Low
Privileges: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

Probability of exploitation in the next 30 days.

1.91%

VYPR risk score

Composite of severity, exploitation, and reach.

0.64high

cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVE ID

CVE-2026-9456

Credits

L(
LtzHust (VulDB User)
reporter