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High severity · published Mar 30, 2026
CVE-2026-5104
Totolink A3300R cstecgi.cgi setStaticRoute command injection
8.8
CVSS
2.8%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_b20221024. Impacted is the function setStaticRoute of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument ip leads to command injection. The attack may be performed from remote. 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)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A3
A3300R · Totolink
17.0.0cu.557_b20221024 · source: vendor
AF
A3300r Firmware · Totolink
17.0.0cu.557_b20221024 · source: NVD
Affected product
A3
A3300R
Totolink
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5104
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5104
Exploit
https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_ip_cmd_inject
Permissions Required
https://vuldb.com/submit/779142
Third Party Advisory
https://vuldb.com/vuln/354129
Third Party Advisory
https://vuldb.com/vuln/354129/cti
Product
https://www.totolink.net/
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