description: An improper authentication vulnerability in the authentication module of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to obtain system information by sending a crafted URL to a vulnerable device.
problem types: CWE-287 Improper Authentication
affected:
{
defaultStatus: unaffected
product: NAS326 firmware
vendor: Zyxel
versions:
status: affected, version: V5.21(AAZF.14)C0
}
{
defaultStatus: unaffected
product: NAS542 firmware
vendor: Zyxel
versions:
status: affected, version: V5.21(ABAG.11)C0
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL