PT-2026-31884 · Totolink · Totolink A7100Ru

Ltzhust · Published 2026-03-28 · Updated 2026-04-11 · CVE-2026-6027

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 weakness exists in the Totolink A7100RU router. The issue affects the setUrlFilterRules function within the /cgi-bin/cstecgi.cgi file of the CGI Handler component. Manipulation of the enable argument can lead to operating system command injection. The attack can be launched remotely. A public exploit is available.

Recommendations 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

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

BDU:2026-07599

CVE-2026-6027

Affected Products

Totolink A7100Ru

References · 11

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_172/README.md · Exploit
• https://bdu.fstec.ru/vul/2026-07599 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-6027 · Security Note
• https://twitter.com/giuseppe_1337/status/2042519360967725538 · Twitter Post
• https://vuldb.com/vuln/356603/cti · Note
• https://twitter.com/CveFindCom/status/2042493515054141568 · Twitter Post
• https://vuldb.com/submit/792048 · Note
• https://totolink.net · Note
• https://twitter.com/CVEarity/status/2042976369999757767 · Twitter Post
• https://vuldb.com/vuln/356603 · Note
• https://twitter.com/CVEnew/status/2042561738261041411 · Twitter Post