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CVE-2026-7548

Totolink NR1800X cstecgi.cgi sub_41A68C command injection

HIGH
8.8
CVSS Score
Published: May 1, 2026 at 02:30 AM UTC
Updated: June 17, 2026 at 11:02 AM UTC
2 products affected across 1 vendorNR1800X FirmwareNR1800X

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/360358
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/360358/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/804417
Exploit
Source: cverecord
https://github.com/newym/cve/blob/main/totolink%20nr1800x%20command%20injection.md
Product
Source: cverecord
https://www.totolink.net/

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-77CWE-74

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