6.1

CVE-2021-44054: qnap systems inc. qts Open Redirect

CVSS: 6.1v3.1MediumModified
Published 05-05-2022Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-44054 is a medium (CVSS 6.1) Open Redirect vulnerability in qnap systems inc. qts. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.7% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.58%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-05-2022
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

An open redirect vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero and QTS. If exploited, this vulnerability allows attackers to redirect users to an untrusted page that contains malware. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero and QTS: QuTScloud c5.0.1.1949 and later QuTS hero h5.0.0.1949 build 20220215 and later QuTS hero h4.5.4.1951 build 20220218 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.58%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.01 pp

From 0.57% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.58%

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

Qnap3 products
  • qts≥ 5.0.0.1716, < 5.0.0.1986 | ≥ 4.3.3.0174, < 4.3.3.1945 | ≥ 4.3.4.0899, < 4.3.4.1976 | ≥ 4.3.6.0895, < 4.3.6.1965 | ≥ 4.4.0.0883, < 4.5.4.1991 | 4.2.6:build_20170517 | 4.2.6:build_20190322 | 4.2.6:build_20190730 | 4.2.6:build_20190921 | 4.2.6:build_20191107 | 4.2.6:build_20200109 | 4.2.6:build_20200421 | 4.2.6:build_20200611 | 4.2.6:build_20200821 | 4.2.6:build_20210327 | 4.2.6:build_20211215
  • quts_hero< h4.5.4.1771 | ≥ h5.0.0.1772, < h5.0.0.1986
  • qutscloud< c5.0.1.1998
Qnap systems inc.3 products
  • qts≥ unspecified, < 5.0.0.1986 build 20220324 | ≥ unspecified, < 4.5.4.1991 build 20220329
  • quts hero≥ unspecified, < h5.0.0.1949 build 20220215 | ≥ unspecified, < h4.5.4.1951 build 20220218
  • qutscloud≥ unspecified, < c5.0.1.1949

2 vendors · 6 products

References

1 links