vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-5688

Totolink A7100RU cstecgi.cgi setDdnsCfg os command injection

HIGH
7.3
CVSS Score
Published: April 6, 2026 at 10:15 PM UTC
Updated: July 24, 2026 at 09:23 AM UTC
1 product affected across 1 vendorA7100RU Firmware

Using A7100RU by Totolink?

Get instant alerts when new vulnerabilities affect A7100RU - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.3
Exploit prediction
EPSS 2%
SSVC
PoC

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Impacted is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/355515
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/355515/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/792945
Exploit
Source: cverecord
https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_186/README.md
Product
Source: cverecord
https://www.totolink.net/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-78CWE-77

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card