CVE-2021-28809
Critical
Description
An improper access control vulnerability has been reported to affect certain legacy versions of HBS 3. If exploited, this vulnerability allows attackers to compromise the security of the operating system.QNAP have already fixed this vulnerability in the following versions of HBS 3: QTS 4.3.6: HBS 3 v3.0.210507 and later QTS 4.3.4: HBS 3 v3.0.210506 and later QTS 4.3.3: HBS 3 v3.0.210506 and later
SeverityCritical
CVSS9.8
Exploit probability—
Product
Qnap Hybrid Backup Sync
PublishedJul 8, 2021
First seenJul 8, 2021
How to fix
Update
- qnap hybrid_backup_sync3.0.210507, 3.0.210506 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qnap hybrid_backup_sync | v < 3.0.210507, v < 3.0.210506 | 3.0.210507, 3.0.210506 |
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