CVE-2021-28799
CISA KEV RANSOMWARE
ACT NOW
Priority: 0.00
BB Relevance:
0/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
Description
QNAP NAS running HBS 3 contains an improper authorization vulnerability which can allow remote attackers to log in to a device.
CISA Known Exploited Vulnerability
Vendor / Product
QNAP — Network Attached Storage (NAS)
Date Added
2022-03-31
Remediation Due
2022-04-21
Ransomware Use
CONFIRMED
https://nvd.nist.gov/vuln/detail/CVE-2021-28799