PT-2026-31886 · Totolink · Totolink A7100Ru

Ltzhust · Published 2026-03-28 · Updated 2026-04-11 · CVE-2026-6028

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 b20191024

Description A security issue exists in the Totolink A7100RU router. The setPptpServerCfg function within the /cgi-bin/cstecgi.cgi file, part of the CGI Handler component, is susceptible to OS command injection through the enable parameter. This allows for remote execution of commands. The vulnerability has been publicly disclosed and an exploit is available.

Recommendations For Totolink A7100RU version 7.4cu.2313 b20191024, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

BDU:2026-07593

CVE-2026-6028

Affected Products

Totolink A7100Ru

References · 12

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_173/README.md · Exploit
• https://bdu.fstec.ru/vul/2026-07593 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6028 · Security Note
• https://twitter.com/CVEarity/status/2042979147992174826 · Twitter Post
• https://vuldb.com/vuln/356604/cti · Note
• https://vuldb.com/submit/792049 · Note
• https://twitter.com/CVEnew/status/2042561736407134423 · Twitter Post
• https://totolink.net · Note
• https://twitter.com/0dayPublishing/status/2042602217094480171 · Twitter Post
• https://vuldb.com/vuln/356604 · Note
• https://twitter.com/giuseppe_1337/status/2042524425061351830 · Twitter Post
• https://twitter.com/CveFindCom/status/2042508779695018275 · Twitter Post