This improper link resolution vulnerability allows remote attackers to access system files
Published Dec 5, 2019
9.8
CRITICALCVSS 3.1
EPSS 1.61%
Description
This improper link resolution vulnerability allows remote attackers to access system files. To fix this vulnerability, QNAP recommend updating QTS to their latest versions.
Affected products
- Vendor n/a Product QNAP NAS devices Defaultn/a
- Version QTS 4.4.1: before build 20191109, QTS 4.3.6: before build 20190919, QTS 4.3.4: before build 20190921, QTS 4.3.3: before build 20190921, QTS 4.2.6: before build 20191107StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | QNAP NAS devices | n/a |
|
- 4.2.6
- 4.3.3.0868
- 4.3.3.0998
- 4.3.4.0899
- 4.3.4.1029
- 4.3.6.0895
- 4.3.6.0907
- 4.3.6.0923
- 4.3.6.0944
- 4.3.6.0959
- 4.3.6.0979
- 4.3.6.0993
- 4.3.6.1013
- 4.3.6.1033
- 4.4.1.0948
- 4.4.1.0949
- 4.4.1.0978
- 4.4.1.0998
- 4.4.1.0999
- 4.4.1.1031
- 4.4.1.1033
- 4.4.1.1064
- 4.4.1.1081
- 4.4.1.1086
- 4.4.1.1101
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.61% (0.01614) | 75.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.61% (0.01614) | 72.75th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.25% (0.01246) | 77.46th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.39% (0.02391) | 75.02th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.20% (0.01203) | 85.39th | v3 (v2023.03.01) |
| Jan 14, 2024 | 1.20% (0.01203) | 83.68th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.89% (0.00894) | 80.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.68% (0.00675) | 76.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.30% (0.02304) | 53.71th | v5 (v2026.06.15) |
| Jan 6, 2022 | 2.30% (0.02304) | 53.25th | v1 |
| Sep 1, 2021 | 0.52% (0.00523) | 32.27th | v1 |
| Apr 14, 2021 | 0.52% (0.00523) | 0.00th | v1 |
References (1)
- https://www.qnap.com/zh-tw/security-advisory/nas-201911-27 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.qnap.com/zh-tw/security-advisory/nas-201911-27 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.