CVE-2026-9455

CRITICAL 9.8

Totolink A8000RU Web Management cstecgi.cgi UploadOpenVpnCert os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument FileName leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	May 25, 2026
Last Updated	May 26, 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/365436 vuldb.com: https://vuldb.com/vuln/365436/cti vuldb.com: https://vuldb.com/submit/813449 github.com: https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_342/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHust (VulDB User)