01 Record

CVE-2021-44052

Arbitrary file read

MediumPUBLISHEDCNA: qnap

CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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02 Description

Arbitrary file read

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 1.59% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 75.1% of scored records. A rank, not a probability.
NVD base score: 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2022-05-05 16:50Z4 YR AGO

Last updated

2024-09-16 22:56Z2 YR AGO

Reserved

2021-11-19

Assigning CNA

qnap

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

CWE-59Improper Link Resolution Before File Access ('Link Following')Base

Data version

5.1

Document digest

a1a3aa1e5aadf92469a1d488c347153c6c4a4ef67e4633d7476035bdb946407b

05 Affected products

VendorProductVersionsPlatforms

QNAP Systems Inc.QuTScloud< c5.0.1.1998—

QNAP Systems Inc.QuTS hero< h4.5.4.1971 build 20220310, < h5.0.0.1986 build 20220324—

QNAP Systems Inc.QTS< 4.3.4.1976 build 20220303, < 4.3.3.1945 build 20220303, < 4.2.6 build 20220304, < 4.3.6.1965 build 20220302, < 5.0.0.1986 build 20220324, < 4.5.4.1991 build 20220329—

06 References

www.qnap.comhttps://www.qnap.com/en/security-advisory/qsa-22-16x_refsource_MISC

07 Remediation

We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later