CVE-2026-5688

HIGH 7.3

Totolink A7100RU cstecgi.cgi setDdnsCfg os command injection

CVSS Score

7.3

EPSS Score

2.4%

EPSS Percentile

85th

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.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a7100ru
Published	Apr 6, 2026
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A7100RU

7.4cu.2313_b20191024

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/355515 vuldb.com: https://vuldb.com/vuln/355515/cti vuldb.com: https://vuldb.com/submit/792945 github.com: https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_186/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHust2 (VulDB User)