PT-2026-32240 · Totolink · A7100Ru

Ltzhust2 · Published 2026-03-31 · Updated 2026-04-22 · CVE-2026-6155

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 A7100RU version 7.4cu.2313

Description A weakness exists in the CGI Handler component of Totolink A7100RU version 7.4cu.2313. Manipulation of the pppoeServiceName argument within the setWanCfg function in the /cgi-bin/cstecgi.cgi file can lead to operating system command injection. This attack can be launched remotely. A public exploit is available.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

BDU:2026-07591

CVE-2026-6155

Affected Products

A7100Ru

References · 10

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_196/README.md · Exploit
• https://bdu.fstec.ru/vul/2026-07591 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6155 · Security Note
• https://twitter.com/giuseppe_1337/status/2046782375573459108 · Twitter Post
• https://totolink.net · Note
• https://twitter.com/CveFindCom/status/2043550478722601281 · Twitter Post
• https://vuldb.com/submit/793679 · Note
• https://twitter.com/PurpleOps_io/status/2043909934350254342 · Twitter Post
• https://vuldb.com/vuln/357035/cti · Note
• https://vuldb.com/vuln/357035 · Note