CVE-2026-1326

moderate-risk
Published 2026-01-22

A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. This vulnerability affects the function setWanCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. This manipulation of the argument Hostname causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Do I need to act?

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0.53% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Totolink

References (5)

Exploit https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWanCfg-2e453a41781f...
Permissions Required https://vuldb.com/?ctiid.342302
Third Party Advisory https://vuldb.com/?id.342302
Third Party Advisory https://vuldb.com/?submit.735787
Product https://www.totolink.net/
30
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 2/34 · Minimal
Exposure 5/34 · Minimal