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Description

A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. This affects the function sub_41A68C of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument setUssd results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used.

PUBLISHED Reserved 2026-04-30 | Published 2026-05-01 | Updated 2026-05-01 | Assigner VulDB




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Command Injection

Injection

Product status

9.1.0u.6279_B20210910
affected

Timeline

2026-04-30:Advisory disclosed
2026-04-30:VulDB entry created
2026-04-30:VulDB entry last update

Credits

NEWYM (VulDB User) reporter

References

vuldb.com/vuln/360358 (VDB-360358 | Totolink NR1800X cstecgi.cgi sub_41A68C command injection) vdb-entry technical-description

vuldb.com/vuln/360358/cti (VDB-360358 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/804417 (Submit #804417 | Totolink C834FR-1C NR1800X command injection) third-party-advisory

github.com/...lob/main/totolink nr1800x command injection.md exploit

www.totolink.net/ product

cve.org (CVE-2026-7548)

nvd.nist.gov (CVE-2026-7548)

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