This improper input validation vulnerability allows remote attackers to inject arbitrary code to the system. To fix the vulnerability, QNAP recommend updating QTS to their latest versions.
Conclusion & alert: CVE-2019-7193 is rated Critical Active Threat (92.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 25.79%, 96th percentile). Core evidence: CISA KEV confirms active exploitation (added 2022-06-08) affecting QNAP / QTS. a weakness (CWE-20) Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.
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: QNAP QTS Improper Input Validation Vulnerability · CISA KEV detail
: 2022-06-08
: 2022-06-22
: Apply updates per vendor instructions.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-11-24 | 34.36% | 25.79% | -8.57% |
| 2 | 2025-11-21 | 21.74% | 34.36% | +12.62% |
| 3 | 2025-11-18 | — | 21.74% | — |
Full EPSS history (32 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| qnap | qts | 4.3.6.0895 | cpe:2.3:o:qnap:qts:4.3.6.0895:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.0907 | cpe:2.3:o:qnap:qts:4.3.6.0907:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.0923 | cpe:2.3:o:qnap:qts:4.3.6.0923:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.0944 | cpe:2.3:o:qnap:qts:4.3.6.0944:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.0959 | cpe:2.3:o:qnap:qts:4.3.6.0959:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.0979 | cpe:2.3:o:qnap:qts:4.3.6.0979:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.0993 | cpe:2.3:o:qnap:qts:4.3.6.0993:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.1013 | cpe:2.3:o:qnap:qts:4.3.6.1013:-:*:*:*:*:*:* |
| qnap | qts | 4.3.6.1033 | cpe:2.3:o:qnap:qts:4.3.6.1033:-:*:*:*:*:*:* |
| qnap | qts | 4.4.1.0948 | cpe:2.3:o:qnap:qts:4.4.1.0948:beta:*:*:*:*:*:* |
| qnap | qts | 4.4.1.0949 | cpe:2.3:o:qnap:qts:4.4.1.0949:beta:*:*:*:*:*:* |
| qnap | qts | 4.4.1.0978 | cpe:2.3:o:qnap:qts:4.4.1.0978:beta_2:*:*:*:*:*:* |
| qnap | qts | 4.4.1.0998 | cpe:2.3:o:qnap:qts:4.4.1.0998:beta_3:*:*:*:*:*:* |
| qnap | qts | 4.4.1.0999 | cpe:2.3:o:qnap:qts:4.4.1.0999:beta_3:*:*:*:*:*:* |
| qnap | qts | 4.4.1.1031 | cpe:2.3:o:qnap:qts:4.4.1.1031:beta_4:*:*:*:*:*:* |
| qnap | qts | 4.4.1.1033 | cpe:2.3:o:qnap:qts:4.4.1.1033:beta_4:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/157857/QNAP-QTS-And-Photo-Station-6.0.3-Remote-Command-Execution.html | Exploit Third Party Advisory VDB Entry |
| https://www.qnap.com/zh-tw/security-advisory/nas-201911-25 | Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-7193 | US Government Resource |