High severity · published Aug 31, 2026
CVE-2026-82597
TOTOLINK NR1800X cstecgi.cgi setUssd command injection
7.4
CVSS
1.8%
EPSS
No
On KEV
Description
A vulnerability was identified in TOTOLINK NR1800X 9.1.0u.6681_B20230703. This affects the function setUssd of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ussd leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% 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.6681_B20230703 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82597
github.com
https://github.com/lxiansheng488-bit/-/blob/main/TOTOlink/totolink%20setuuid%E5%91%BD%E4%BB%A4%E6%B3%A8%E5%85%A5.pdf
vuldb.com
https://vuldb.com/cve/CVE-2026-82597
vuldb.com
https://vuldb.com/submit/892696
vuldb.com
https://vuldb.com/vuln/397092
vuldb.com
https://vuldb.com/vuln/397092/cti
www.totolink.net
https://www.totolink.net/
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