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Vulnerability IntelligenceCVE-2026-5691

CVE-2026-5691

HIGH7.3

Totolink A7100RU cstecgi.cgi setFirewallType os command injection

Published Apr 6, 2026

Modified 4 days ago

Details

A vulnerability has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setFirewallType of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument firewallType leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

References

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_189/README.md

https://vuldb.com/submit/792962

https://vuldb.com/vuln/355518

https://vuldb.com/vuln/355518/cti

https://www.cve.org/CVERecord?id=CVE-2026-5691

https://www.totolink.net/

CVSS Analysis

CVSS v4.0

6.9

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

LowVC:L

Vuln. Integrity

LowVI:L

Vuln. Availability

LowVA:L

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

6.9/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Weakness Type (CWE)

Injection

OS Command Injection

Input Validation

Command Injection

Ecosystems

Timeline

PublishedApr 6, 2026

ModifiedApr 7, 2026

CVE-2026-5691 | Mondoo Vulnerability Intelligence