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CISA KEV · Known exploitedCritical

CVE-2019-7193

QNAP QTS

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.

CVSS
9.8
EPSS
14.4%
96.3% percentile
CISA KEV
Listed
Published
2019.12.06
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability14.4%
Technical severityCVSS 9.8

Vulnerability overview

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 product and versions

Product
QNAP QTS
Affected versions
QTS 4.4.0 - QTS 4.4.1: before build 20190918, QTS 4.3.6: before build 20190919, 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
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.06.22
  1. 1
    Identify

    Confirm that QNAP QTS and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-20
KEV added
2022.06.08
Ransomware use
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