DrayTek VigorSwitch Multiple Models Pre-Authentication NULL Pointer Dereference via setget.cgi
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.5%
exploitation probability
0.5%top 60% of all CVEs
observed exploitation
nono source reports it
Multiple DrayTek VigorSwitch models contain a pre-authentication null pointer dereference vulnerability in the setget.cgi interface. The vulnerability is caused by missing validation when the pass field is absent. A remote attacker can trigger this vulnerability via a crafted request to crash the service and cause a denial of service.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
DrayTek Corporation · VigorSwitch FX2120DrayTek Corporation · VigorSwitch G1280DrayTek Corporation · VigorSwitch G1282DrayTek Corporation · VigorSwitch G2100DrayTek Corporation · VigorSwitch G2121DrayTek Corporation · VigorSwitch G2280xDrayTek Corporation · VigorSwitch G2282xDrayTek Corporation · VigorSwitch G2540xDrayTek Corporation · VigorSwitch G2540xsDrayTek Corporation · VigorSwitch G2542xDrayTek Corporation · VigorSwitch P1280DrayTek Corporation · VigorSwitch P1281xDrayTek Corporation · VigorSwitch P1282DrayTek Corporation · VigorSwitch P2100DrayTek Corporation · VigorSwitch P2121DrayTek Corporation · VigorSwitch P2280xDrayTek Corporation · VigorSwitch P2282xDrayTek Corporation · VigorSwitch P2540xDrayTek Corporation · VigorSwitch P2540xsDrayTek Corporation · VigorSwitch P2542xDrayTek Corporation · VigorSwitch P2542xhDrayTek Corporation · VigorSwitch PQ2121xDrayTek Corporation · VigorSwitch PQ2200xbDrayTek Corporation · VigorSwitch PQ2300xbDrayTek Corporation · VigorSwitch PX2060DrayTek Corporation · VigorSwitch Q2121xDrayTek Corporation · VigorSwitch Q2200xDrayTek Corporation · VigorSwitch Q2300x