PT-2026-43043 · Totolink · A8000Ru

Ltzhust · Published 2026-05-25 · Updated 2026-05-25 · CVE-2026-9455

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

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 within the UploadOpenVpnCert() function of the '/cgi-bin/cstecgi.cgi' endpoint. This occurs due to improper manipulation of the FileName argument, allowing for remote exploitation.

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-2026-9455

Affected Products

A8000Ru

References · 8

• 🔥 https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_342/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-9455 · Security Note
• https://vuldb.com/vuln/365436/cti · Note
• https://totolink.net · Note
• https://vuldb.com/vuln/365436 · Note
• https://twitter.com/CVEnew/status/2058935252916060667 · Twitter Post
• https://t.me/CVEtracker/54862 · Telegram Post
• https://vuldb.com/submit/813449 · Note