CVE-2018-19941

Name: CVE-2018-19941
Creator: NVD / NIST
Published: 2020-12-31T17:15:12.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.66%

Last modified Jun 17, 2026

CVE-2018-19941 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. EPSS estimates a 0.66% chance of exploitation in the next 30 days.

Description

A vulnerability has been reported to affect QNAP NAS. If exploited, this vulnerability allows an attacker to access sensitive information stored in cleartext inside cookies via certain widely-available tools. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.1.1456 build 20201015 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.2.1379 build 20200730 (and later)

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.66%

46.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Qnap	Qts	< 4.5.1.1456
Qnap	Quts Hero	< h4.5.1.1472
Qnap	Qutscloud	< c4.5.2.1379

References

https://www.qnap.com/zh-tw/security-advisory/qsa-20-23Vendor Advisory
https://www.qnap.com/zh-tw/security-advisory/qsa-20-23Vendor Advisory

Timeline

Published: Dec 31, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19941?

How severe is CVE-2018-19941?

CVE-2018-19941 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.66% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19941?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-19941?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST