PT-2026-43090 · Totolink · A8000Ru

Ltzhust · Published 2026-05-25 · Updated 2026-05-25 · CVE-2026-9475

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Totolink A8000RU version 7.1cu.643 b20200521

Description An OS command injection issue exists in the Web Management Interface. The problem occurs within the setIpQosRules() function of the '/cgi-bin/cstecgi.cgi' endpoint. Remote exploitation is possible by manipulating the Comment argument, which allows the execution of arbitrary operating system commands.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

CVE-2026-9475

Affected Products

A8000Ru

References · 7

• 🔥 https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_347/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-9475 · Security Note
• https://totolink.net · Note
• https://vuldb.com/vuln/365456 · Note
• https://vuldb.com/vuln/365456/cti · Note
• https://t.me/CVEtracker/54890 · Telegram Post
• https://vuldb.com/submit/813458 · Note