Description
An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the stunMaxAlive parameter to /cgi-bin/cstecgi.cgi.
Affected products
totolink: a3300r firmware; totolink: a3300r
References2
- github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-stun-… ExploitThird Party Advisory
- github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-stun-… ExploitThird Party Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 48 · as of 13 November 2026
- CWE
- CWE-78
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.