PT-2026-35573 · Totolink · A8000Ru

Ltzhust · Published 2026-04-28 · Updated 2026-04-29 · CVE-2026-7204

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 CGI Handler component. A remote attacker can manipulate the enable argument within the setPptpServerCfg() function of the '/cgi-bin/cstecgi.cgi' endpoint to execute arbitrary operating system commands.

Recommendations Update Totolink A8000RU version 7.1cu.643 b20200521 to a patched version. As a temporary workaround, restrict access to the '/cgi-bin/cstecgi.cgi' endpoint to minimize the risk of exploitation.

Exploit

Fix

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

CVE-2026-7204

Affected Products

A8000Ru

References · 10

• 🔥 https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_323/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7204 · Security Note
• https://vuldb.com/vuln/359804/cti · Note
• https://t.me/CVEtracker/51996 · Telegram Post
• https://totolink.net · Note
• https://twitter.com/NewsNerdie/status/2049036458795598116 · Twitter Post
• https://vuldb.com/submit/801530 · Note
• https://twitter.com/PurpleOps_io/status/2049345790892474778 · Twitter Post
• https://vuldb.com/vuln/359804 · Note
• https://twitter.com/CVEarity/status/2049080148297940999 · Twitter Post