PT-2026-43014 · Totolink · A8000Ru

Ltzhuster2 · Published 2026-05-25 · Updated 2026-05-25 · CVE-2026-9435

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 flaw is located in the setQosCfg() function within the '/cgi-bin/cstecgi.cgi' endpoint. Remote exploitation is possible by manipulating the enable argument.

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-2026-9435

Affected Products

A8000Ru

References · 7

• 🔥 https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_356/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-9435 · Security Note
• https://vuldb.com/vuln/365416 · Note
• https://t.me/CVEtracker/54832 · Telegram Post
• https://vuldb.com/vuln/365416/cti · Note
• https://vuldb.com/submit/813908 · Note
• https://totolink.net · Note