Vulnerability details

CVE-2026-9475

Totolink A8000RU

Totolink A8000RU Web Management cstecgi.cgi setIpQosRules os command injection

CVSS 4.0

9.3Critical

Official description

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument Comment causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

CVSS scores

Score	Version	Source	Vector
9.3Critical	4.0	CVEProject cvelistV5 (CNA) (VulDB)	`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`
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R`
9.8Critical	3.0	CVEProject cvelistV5 (CNA) (VulDB)	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R`
10.0High	2.0	CVEProject cvelistV5 (CNA) (VulDB)	`AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR`

Affected products

Vendor	Product	Versions	Source
Totolink	A8000RU	7.1cu.643_b20200521	CVEProject cvelistV5 (CNA)

References and advisories

https://vuldb.com/vuln/365456 vdb-entrytechnical-description
https://vuldb.com/vuln/365456/cti signaturepermissions-required
https://vuldb.com/submit/813458 third-party-advisory
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_347/README.md exploit
https://www.totolink.net/ product

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Details

Published: 2026-05-25
Last updated: 2026-05-26
State: Published
Assigner (CNA): VulDB

Exploit prediction (EPSS)

1.9%

Probability of exploitation in 30 days

79.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-78
OS Command Injection
CWE-77
Command Injection