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Actively exploited

Listed in CISA’s Known Exploited Vulnerabilities catalog since March 31, 2022.

Known ransomware use

CVE-2021-28799

QNAP NAS Improper Authorization Vulnerability

QNAP · Network Attached Storage (NAS)

Added to KEV March 31, 2022

Alert details

Source feed
CISA KEV
CVE ID
CVE-2021-28799
CWE
CWE-285
Affected products
Network Attached Storage (NAS) · QNAP Network Attached Storage (NAS) · QNAP

What happened

QNAP NAS running HBS 3 contains an improper authorization vulnerability which can allow remote attackers to log in to a device.

What it means for your business

QNAP Network Attached Storage (NAS) is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2021-28799). QNAP NAS running HBS 3 contains an improper authorization vulnerability which can allow remote attackers to log in to a device. CISA remediation due date: 2022-04-21. If you need help checking exposure, call (864) 335-9223.

Required action

Apply updates per vendor instructions.

CISA due date: April 21, 2022

Sources

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