Home→Vulnerabilities→CVE-2026-7548
Disclosed

CVE-2026-7548

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.

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Exploitation Probability (EPSS)

Low Priority
1.54%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events
May 1, 2026
Vulnerability Disclosed
Published to component-level vulnerability database.
May 1, 2026
Last Updated
Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL
Associated Groups:Lazarus Group, APT28
Ransomware Campaigns:LockBit 3.0, BlackCat
IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

References

https://github.com/newym/cve/blob/main/totolink%20nr1800x%20command%20injection.mdGitHub
https://vuldb.com/submit/804417Vuldb
https://vuldb.com/vuln/360358Vuldb
https://vuldb.com/vuln/360358/ctiVuldb

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Check your domain or package.json for CVE-2026-7548 exposure.

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Vulnerability Details

CVSS Base Score
8.8/ 10
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published Date
May 1, 2026
Last Modified
May 1, 2026
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