Critical severity · published Apr 26, 2026
CVE-2026-7037
Totolink A8000RU CGI cstecgi.cgi setVpnPassCfg os command injection
9.8
CVSS
1.8%
EPSS
No
On KEV
Description
A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument pptpPassThru results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
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)1.8% · higher than 78% 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-2026-7037
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7037
github.com
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_305/README.md
vuldb.com
https://vuldb.com/submit/798484
vuldb.com
https://vuldb.com/vuln/359617
vuldb.com
https://vuldb.com/vuln/359617/cti
www.totolink.net
https://www.totolink.net/
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