CVE-2021-44052

mediumPriorität · verfolgen · 33EPSS 0.016 · 76. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.59% (76th) EPSS

CVSS 5.5 · medium

Is it mine?

36 products

Prüfe deine Angriffsfläche

Who says so?

3 sources

cnnvd · enisa_euvd · fstec_bdu

EPSS · bewertet 2026-10-27

An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. 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

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5.5–8.1

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 8 · Auswirkung 4.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 5.2

v3.18.1highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · security@qnapsecurity.com.twAusnutzbarkeit 2.8 · Auswirkung 3.6

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-59USprimärCWE-59US

betroffene Produkte (36)

Betroffene Produkte und Versionsbereiche.

QNAP Systems Inc. QTSunspecified → 4.2.6 build 20220304enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.3.3.1945 build 20220303enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.3.4.1976 build 20220303enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.3.6.1965 build 20220302enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 4.5.4.1991 build 20220329enisa_euvdEU
QNAP Systems Inc. QTSunspecified → 5.0.0.1986 build 20220324enisa_euvdEU
QNAP Systems Inc. QuTS herounspecified → h4.5.4.1971 build 20220310enisa_euvdEU
QNAP Systems Inc. QuTS herounspecified → h5.0.0.1986 build 20220324enisa_euvdEU
QNAP Systems Inc. QuTScloudunspecified → c5.0.1.1998enisa_euvdEU
QNAP Systems, Inc. QTS≤ 4.2.6build 20200109fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20170517fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20211215fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20210327fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20191107fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20190322fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20190730fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20190921fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20200611fstec_bduRU
QNAP Systems, Inc. QTS≤ 4.2.6build 20200421fstec_bduRU
QNAP Systems, Inc. QTS4.3.3.0174 → 4.3.3.1945fstec_bduRU

20 von 36 angezeigt

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu NVD CVE.org MITRE

veröffentlicht 2022-05-05geändert 2026-06-17

verwandt (2,372)

Verwandte Einträge.

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CVE-2026-81963US	high7.8OT kritisch	0.39% (33rd)	KEV	2026-09-08
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
CVE-2026-41091US	—OT kritisch	8.20% (95th)	KEV	2026-05-20
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.
CVE-2025-60710US	—OT kritisch	4.61% (92nd)	KEV	2025-11-11
Improper link resolution before file access ('link following') in Host Process for Windows Tasks allows an authorized attacker to elevate privileges locally.
CVE-2025-48384US	—OT kritisch	4.38% (91st)	KEV	2025-07-08
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. When reading…
CVE-2025-21391US	—OT kritisch	2.28% (83rd)	KEV	2025-02-11
Windows Storage Elevation of Privilege Vulnerability

+2367 weitere

Referenzen (5)

Externe Belege — Patches, Meldungen, Analysen.

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