QNAP vulnerabilities
- QNAP has 463 CVE records published between 28 Oct 2023 and 28 Oct 2026, ranking #33 of 420 vendors on this site by that count.
- Of the 463 with a CVSS score, 143 (30.9%) are rated critical or high; 0 (0% of all) have no CVSS score.
- 12 vulnerabilities attributed to QNAP are listed in CISA's Known Exploited Vulnerabilities (KEV) catalog; the most recent, CVE-2023-47565, was added on 21 Dec 2023.
- 9 of them (75%) are marked as known to be used in ransomware campaigns.
- For the 12 KEV entries with a published CVE record, the median time from CVE publication to KEV listing is 573 days.
Records are attributed to QNAP from the vendor named in the source records. About the data.
CVE records per year
Show data as a table
| Year | CVE records |
|---|---|
| 2017 | 11 |
| 2018 | 26 |
| 2019 | 5 |
| 2020 | 31 |
| 2021 | 50 |
| 2022 | 22 |
| 2023 | 37 |
| 2024 | 146 |
| 2025 | 145 |
| 2026 | 160 |
2026 is partial (through 28 Oct 2026), shown in a lighter bar.
| Year | Records | Critical | High | Critical or high | Not scored |
|---|---|---|---|---|---|
| 2026 | 160 | 7 | 28 | 21.9% | 0% |
| 2025 | 145 | 3 | 49 | 35.9% | 0% |
| 2024 | 146 | 11 | 38 | 33.6% | 0% |
| 2023 | 37 | 4 | 13 | 45.9% | 0% |
| 2022 | 22 | 2 | 8 | 45.5% | 0% |
| 2021 | 50 | 13 | 20 | 78.6% | 16% |
| 2020 | 31 | 3 | 4 | 50% | 54.8% |
| 2019 | 5 | 4 | 0 | 100% | 20% |
| 2018 | 26 | 0 | 1 | 50% | 92.3% |
| 2017 | 11 | 0 | 0 | — | 100% |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Exploited vulnerabilities in CISA's KEV catalog
| CVE | Product | Name | Added | Ransomware |
|---|---|---|---|---|
| CVE-2023-47565 | VioStor NVR | QNAP VioStor NVR OS Command Injection Vulnerability | 2023-12-21 | Unknown |
| CVE-2022-27593 | Photo Station | QNAP Photo Station Externally Controlled Reference Vulnerability | 2022-09-08 | Known |
| CVE-2019-7192 | Photo Station | QNAP Photo Station Improper Access Control Vulnerability | 2022-06-08 | Known |
| CVE-2019-7193 | QTS | QNAP QTS Improper Input Validation Vulnerability | 2022-06-08 | Known |
| CVE-2019-7194 | Photo Station | QNAP Photo Station Path Traversal Vulnerability | 2022-06-08 | Known |
| CVE-2019-7195 | Photo Station | QNAP Photo Station Path Traversal Vulnerability | 2022-06-08 | Known |
| CVE-2018-19943 | Network Attached Storage (NAS) | QNAP NAS File Station Cross-Site Scripting Vulnerability | 2022-05-24 | Known |
| CVE-2018-19949 | Network Attached Storage (NAS) | QNAP NAS File Station Command Injection Vulnerability | 2022-05-24 | Known |
| CVE-2018-19953 | Network Attached Storage (NAS) | QNAP NAS File Station Cross-Site Scripting Vulnerability | 2022-05-24 | Known |
| CVE-2020-2509 | QNAP Network-Attached Storage (NAS) | QNAP Network-Attached Storage (NAS) Command Injection Vulnerability | 2022-04-11 | Unknown |
| CVE-2021-28799 | Network Attached Storage (NAS) | QNAP NAS Improper Authorization Vulnerability | 2022-03-31 | Known |
| CVE-2020-2506 | Helpdesk | QNAP Helpdesk Improper Access Control Vulnerability | 2022-03-25 | Unknown |
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.
Highest exploit-prediction scores (EPSS)
EPSS estimates the probability that a vulnerability is exploited in the next 30 days. These are the 10 highest-scoring QNAP records today.
| CVE | EPSS | Percentile | Severity | In KEV |
|---|---|---|---|---|
| CVE-2023-47218 | 89.9% | 99.8% | Medium | No |
| CVE-2019-7195 | 89.3% | 99.8% | Critical | Yes |
| CVE-2019-7192 | 88.1% | 99.8% | Critical | Yes |
| CVE-2022-27593 | 87.9% | 99.8% | Critical | Yes |
| CVE-2019-7194 | 82.7% | 99.7% | Critical | Yes |
| CVE-2021-28799 | 78.3% | 99.6% | Critical | Yes |
| CVE-2023-47565 | 73.3% | 99.5% | High | Yes |
| CVE-2018-0707 | 58.8% | 99.1% | Not scored | No |
| CVE-2018-0706 | 48.3% | 98.9% | Not scored | No |
| CVE-2023-51364 | 39.7% | 98.6% | High | No |
Source: FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.27, as of 27 Oct 2026. About the data.