Critical severity · published Apr 27, 2026
CVE-2026-7137
Totolink A8000RU CGI cstecgi.cgi setStorageCfg os command injection
9.8
CVSS
1.8%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setStorageCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument sambaEnabled leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly 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)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-2026-7137
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7137
github.com
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_312/README.md
vuldb.com
https://vuldb.com/submit/801008
vuldb.com
https://vuldb.com/vuln/359736
vuldb.com
https://vuldb.com/vuln/359736/cti
www.totolink.net
https://www.totolink.net/
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