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CWE

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CVE-2026-5688

Published: Apr 6, 2026

Modified: Apr 8, 2026

PUBLISHED

CVSS v3.1

7.3

HIGH

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.

Vendor	Product	Versions
Totolink	A7100RU	affected `7.4cu.2313_b20191024`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-355515 | Totolink A7100RU cstecgi.cgi setDdnsCfg os command injection

vdb-entry

technical-description

VDB-355515 | CTI Indicators (IOB, IOC, TTP, IOA)

signature

permissions-required

Submit #792945 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection

third-party-advisory

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_186/README.md

exploit

https://www.totolink.net/

product

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