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High severity · published Jan 22, 2026
CVE-2026-1327
Totolink NR1800X POST Request cstecgi.cgi setTracerouteCfg command injection
8.8
CVSS
2.9%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argument command leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NR
NR1800X · Totolink
9.1.0u.6279_B20210910 · source: vendor
NF
Nr1800x Firmware · Totolink
9.1.0u.6279_b20210910 · source: NVD
Affected product
NR
NR1800X
Totolink
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1327
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1327
Exploit
https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setTracerouteCfg-2e453a41781f80df8ef9d32983758502?source=copy_link
Permissions Required
https://vuldb.com/?ctiid.342303
Third Party Advisory
https://vuldb.com/?id.342303
Third Party Advisory
https://vuldb.com/?submit.735790
Product
https://www.totolink.net/
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