CVE-2026-7139

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mode causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

CVSS v4.0

8.9 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS

1.77% chance of exploitation in the next 30 days, 76th percentile

Published

2026-04-27

Updated

2026-04-29

Proof-of-concept exploits (1)

• Litengzheng/vuldb_new2/blob/main/A8000RU/vul_314/README.md

References

• CVE Record
• NVD entry

Related

• CVE-2026-7138
• CVE-2026-7140
• CVE-2026-7137
• CVE-2026-7141
• CVE-2026-71362
• CVE-2026-71417