CVE-2026-7138

CRITICAL 9.8

Totolink A8000RU CGI cstecgi.cgi setNtpCfg os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setNtpCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument tz results in os command injection. The attack can be executed remotely. The exploit is now public and may be used.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	Apr 27, 2026
Last Updated	Apr 27, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A8000RU

7.1cu.643_b20200521

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/359737 vuldb.com: https://vuldb.com/vuln/359737/cti vuldb.com: https://vuldb.com/submit/801105 github.com: https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_313/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster2 (VulDB User)