CVE-2026-5677

HIGH

Totolink A7100RU cstecgi.cgi CsteSystem os command injection

Title source: cna

Description

A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument resetFlags results in os command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-355504 | Totolink A7100RU cstecgi.cgi CsteSystem os command injection

https://vuldb.com/vuln/355504

Signature, Permissions Required signature permissions-required

VDB-355504 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/355504/cti

Third Party Advisory third-party-advisory

Submit #792606 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection

https://vuldb.com/submit/792606

Exploit exploit

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_184/README.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 7.3

EPSS 0.0114

EPSS Percentile 62.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A7100RU 7.4cu.2313_b20191024

Published Apr 06, 2026

Tracked Since Apr 07, 2026