description: A buffer overflow vulnerability in the “sdwan_iface_ipc” binary of Zyxel ATP series firmware versions 5.10 through 5.32, USG FLEX series firmware versions 5.00 through 5.32, USG FLEX 50(W) firmware versions 5.10 through 5.32, USG20(W)-VPN firmware versions 5.10 through 5.32, and VPN series firmware versions 5.00 through 5.35, which could allow a remote unauthenticated attacker to cause a core dump with a request error message on a vulnerable device by uploading a crafted configuration file.
problem types: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
affected:
{
vendor: Zyxel
product: ATP series firmware
versions:
version: 5.10 through 5.32, status: affected
}
{
vendor: Zyxel
product: USG FLEX series firmware
versions:
version: 5.00 through 5.32, status: affected
}
{
vendor: Zyxel
product: USG FLEX 50(W) firmware
versions:
version: 5.10 through 5.32, status: affected
}
{
vendor: Zyxel
product: USG20(W)-VPN firmware
versions:
version: 5.10 through 5.32, status: affected
}
{
vendor: Zyxel
product: VPN series firmware
versions:
version: 5.00 through 5.35, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
]