Critical severity · published Apr 28, 2026
CVE-2026-7240
Totolink A8000RU CGI cstecgi.cgi setVpnAccountCfg os command injection
9.8
CVSS
2.4%
EPSS
No
On KEV
Description
A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument User leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A8
A8000RU · Totolink
7.1cu.643_b20200521 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7240
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7240
github.com
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_324/README.md
vuldb.com
https://vuldb.com/submit/802845
vuldb.com
https://vuldb.com/vuln/359847
vuldb.com
https://vuldb.com/vuln/359847/cti
www.totolink.net
https://www.totolink.net/
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