CVE-2021-28809

critical · 9.8

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

9.8

CVSS

15.8%

EPSS (exploit prob.)

97th

EPSS percentile

2021-07-08

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-284CWE-306CWE-749

Affected products

Vendor	Product	Affected versions
qnap	hybrid_backup_sync	< 3.0.210507
qnap	qts	4.3.6
qnap	hybrid_backup_sync	< 3.0.210506
qnap	qts	4.3.4
qnap	hybrid_backup_sync	< 3.0.210506
qnap	qts	4.3.3

Check a specific version with /api/v1/cve/match.

References

https://www.qnap.com/en/security-advisory/qsa-21-19
https://www.zerodayinitiative.com/advisories/ZDI-21-783/
https://www.qnap.com/en/security-advisory/qsa-21-19
https://www.zerodayinitiative.com/advisories/ZDI-21-783/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-28809