High severity · published Jan 22, 2026
CVE-2026-1328
Totolink NR1800X POST Request cstecgi.cgi setWizardCfg buffer overflow
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
A vulnerability was detected in Totolink NR1800X 9.1.0u.6279_B20210910. Impacted is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public 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)0.8% · higher than 58% 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1328
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1328
Exploit
https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWizardCfg-2e453a41781f80568a54c9368082fbe9?source=copy_link
Permissions Required
https://vuldb.com/?ctiid.342304
Third Party Advisory
https://vuldb.com/?id.342304
Third Party Advisory
https://vuldb.com/?submit.735792
Product
https://www.totolink.net/
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