CVE-2021-38688

Name: CVE-2021-38688
Creator: NVD / NIST
Published: 2021-12-29T13:15:08.093+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2021-38688 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An improper authentication vulnerability has been reported to affect Android App Qfile. If exploited, this vulnerability allows attackers to compromise app and access information We have already fixed this vulnerability in the following versions of Qfile: Qfile 3.0.0.1105 and later. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

An improper authentication vulnerability has been reported to affect Android App Qfile. If exploited, this vulnerability allows attackers to compromise app and access information We have already fixed this vulnerability in the following versions of Qfile: Qfile 3.0.0.1105 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

0.81%

52.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Qnap	Qfile	< 3.0.0.1105

References

https://www.qnap.com/en/security-advisory/qsa-21-55Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-21-55Vendor Advisory

Timeline

Published: Dec 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38688?

How severe is CVE-2021-38688?

CVE-2021-38688 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38688?

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-2021-38688?

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

Scan your code now

Source: NVD / NIST