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)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/355504

[Signature, Permissions Required] https://vuldb.com/vuln/355504/cti

[Third Party Advisory] https://vuldb.com/submit/792606

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

View Exploit ZIP pw:eip

[Product] https://www.totolink.net/

Scores

CVSS v3 7.3

EPSS 0.0486

EPSS Percentile 89.6%

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