CVE-2026-82539: TOTOLINK A720R MAC Filtering cstecgi.cgi setMacFilterRules memory corruption
A vulnerability was determined in TOTOLINK A720R 4.1.5cu.630B20250509. This impacts the function setMacFilterRules of the file cstecgi.cgi of the component MAC Filtering. Executing a manipulation of the argument desc can lead to memory corruption. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Affected Software
Event History
Frequently Asked Questions
What access does an attacker need to exploit this issue?
The vulnerable cstecgi.cgi functionality can be reached remotely, but the provided severity vector indicates high privileges are required. No user interaction is required.
Which deployments are known to be affected?
The affected product and version identified in the available data are TOTOLINK A720R 4.1.5cu.630_B20250509. The issue is in the MAC Filtering component's setMacFilterRules function.
Is public exploit information available?
Yes. The exploit has been publicly disclosed and may be used by attackers.