CVE-2026-1326

MEDIUM 6.3

Totolink NR1800X POST Request cstecgi.cgi setWanCfg command injection

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	totolink
Product	nr1800x
Published	Jan 22, 2026
Last Updated	Feb 23, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / NR1800X

9.1.0u.6279_B20210910

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.342302 vuldb.com: https://vuldb.com/?ctiid.342302 vuldb.com: https://vuldb.com/?submit.735787 lavender-bicycle-a5a.notion.site: https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWanCfg-2e453a41781f80b390f3e1ce0d9dd5b9?source=copy_link totolink.net: https://www.totolink.net/

Credits

🔍 yhryhryhr_tu (VulDB User)