9.8

CVE-2021-28804: qnap systems inc. qts OS Command Injection

CVSS: 9.8v3.1CriticalModified
Published 01-07-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-28804 is a critical (CVSS 9.8) OS Command Injection vulnerability in qnap systems inc. qts. EPSS estimates a 1.82% chance of exploitation in the next 30 days, higher than 78.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.82%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-07-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

A command injection vulnerabilities have been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. This issue affects: QNAP Systems Inc. QTS versions prior to 4.5.1.1540 build 20210107. QNAP Systems Inc. QuTS hero versions prior to h4.5.1.1582 build 20210217.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.82%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.82% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.82%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Qnap2 products
Qnap systems inc.2 products
  • qts≥ unspecified, < 4.5.1.1540 build 20210107
  • quts hero≥ unspecified, < h4.5.1.1582 build 20210217

2 vendors · 4 products

References

1 links