CVE-2021-28812
QNAP
- Published
- 3 June 2021
- Last modified
- 17 June 2026
- CVSS
- 8.8 v3.1
- Severity
- high
- EPSS
- 1.6% (73th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-77, CWE-78, CWE-1286
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
A command injection vulnerability has been reported to affect certain versions of Video Station. If exploited, this vulnerability allows remote attackers to execute arbitrary commands. This issue affects: QNAP Systems Inc. Video Station versions prior to 5.5.4 on QTS 4.5.2; versions prior to 5.5.4 on QuTS hero h4.5.2; versions prior to 5.5.4 on QuTScloud c4.5.4. This issue does not affect: QNAP Systems Inc. Video Station on QTS 4.3.6; on QTS 4.3.3.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 1.6% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Video Station | QNAP | unknown | 5.1.3, 5.2.0, < 2023.07.27, < 5.1.8 +14 |
References
Vendor advisory and patch
- https://www.qnap.com/zh-tw/security-advisory/qsa-21-21
- https://www.qnap.com/zh-tw/security-advisory/qsa-21-21
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.