CVE-2026-6139

A vulnerability has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument FileName leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public 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

1.82% chance of exploitation in the next 30 days, 77th percentile

Published

2026-04-13

Updated

2026-04-14

Proof-of-concept exploits (1)

• Litengzheng/vuldb_new/blob/main/A7100RU/vul_192/README.md

References

• CVE Record
• NVD entry

Related

• CVE-2026-6138
• CVE-2026-6140
• CVE-2026-6137
• CVE-2026-6142
• CVE-2026-6136
• CVE-2026-61424