Is CVE-2018-19945 in the CISA KEV catalog?

No. CVE-2018-19945 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-19945?

CVE-2018-19945 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2018-19945?

CVE-2018-19945 has an EPSS score of 1.11% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-19945?

Upgrade qts to 4.3.6.0895 or later.

CVE & CISA-KEV Catalog

CVE-2018-19945

CRITICAL

9.1

CVSS v3

NVD

Description

A vulnerability has been reported to affect earlier QNAP devices running QTS 4.3.4 to 4.3.6. Caused by improper limitations of a pathname to a restricted directory, this vulnerability allows for renaming arbitrary files on the target system, if exploited. QNAP have already fixed this vulnerability in the following versions: QTS 4.3.6.0895 build 20190328 (and later) QTS 4.3.4.0899 build 20190322 (and later) This issue does not affect QTS 4.4.x or QTS 4.5.x.

CWE-20Improper Input Validation CWE-22Path Traversal CWE-73External Control of File Name or Path CWE-284Improper Access Control

How to fix

Remediation Available

qtsNVD

Affected:>= 4.3.5, < 4.3.6.0895Fixed in:4.3.6.0895CVE-2018-19945derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploit Intelligence

1.11%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Vendor Advisory1

qnap.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.