A vulnerability was identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This impacts the function setUrlFilterRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. The manipulation of the argument url leads to stack-based buffer overflow.
The attack can be initiated remotely. The exploit is publicly available and might be used.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setUrlFilterRules…
cna@vuldb.com
https://vuldb.com/cve/CVE-2026-19846
cna@vuldb.com
https://vuldb.com/submit/869456
cna@vuldb.com
https://vuldb.com/vuln/389982
cna@vuldb.com
https://vuldb.com/vuln/389982/cti
cna@vuldb.com
https://www.totolink.net/
cna@vuldb.com