CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- QNAP QTS Improper Input Validation Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
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.
Affected products
qnap: qts
References5
- www.qnap.com/zh-tw/security-advisory/nas-201911-25 Vendor Advisory
- www.qnap.com/zh-tw/security-advisory/nas-201911-25 Vendor Advisory
- packetstormsecurity.com/files/157857/QNAP-QTS-And-Photo-Station… ExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/157857/QNAP-QTS-And-Photo-Station… ExploitThird Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 14% percentile: 97 · as of 10 November 2026
- CWE
- CWE-20
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