PT-2026-36291 · Totolink · A8000Ru

Ltzhuster · Published 2026-05-01 · Updated 2026-05-01 · CVE-2026-7538

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 CGI Handler component. A remote attacker can initiate an attack by manipulating the proto argument within the '/cgi-bin/cstecgi.cgi' endpoint.

Recommendations For version 7.1cu.643 b20200521, avoid using the proto argument in the '/cgi-bin/cstecgi.cgi' endpoint as a temporary mitigation measure. 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-2026-7538

Affected Products

A8000Ru

References · 8

• 🔥 https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_329/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7538 · Security Note
• https://twitter.com/OrizonCyber/status/2050040035794178463 · Twitter Post
• https://vuldb.com/vuln/360354 · Note
• https://twitter.com/VulmonFeeds/status/2050082300423999585 · Twitter Post
• https://vuldb.com/submit/804321 · Note
• https://totolink.net · Note
• https://vuldb.com/vuln/360354/cti · Note