CVE-2021-32563

Name: CVE-2021-32563
Creator: NVD / NIST
Published: 2021-05-11T05:15:07.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.08%

Last modified Jun 17, 2026

CVE-2021-32563 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. EPSS estimates a 3.08% chance of exploitation in the next 30 days.

Description

An issue was discovered in Thunar before 4.16.7 and 4.17.x before 4.17.2. When called with a regular file as a command-line argument, it delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.08%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-913

Affected Software

Vendor	Product	Versions
Xfce	Thunar	< 4.16.7
Xfce	Thunar	>= 4.17.0, < 4.17.2

References

http://www.openwall.com/lists/oss-security/2021/05/11/3Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/01/05/1Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/01/05/2Mailing List, Third Party Advisory
https://gitlab.xfce.org/xfce/thunar/-/commit/1b85b96ebf7cb9bf6a3ddf1acee7643643fdf92dPatch
https://gitlab.xfce.org/xfce/thunar/-/commit/3b54d9d7dbd7fd16235e2141c43a7f18718f5664Patch
https://gitlab.xfce.org/xfce/thunar/-/commit/9165a61f95e43cc0b5abf9b98eee2818a0191e0bPatch
https://gitlab.xfce.org/xfce/thunar/-/tagsRelease Notes
https://www.openwall.com/lists/oss-security/2021/05/09/2Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/3Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/01/05/1Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/01/05/2Mailing List, Third Party Advisory
https://gitlab.xfce.org/xfce/thunar/-/commit/1b85b96ebf7cb9bf6a3ddf1acee7643643fdf92dPatch
https://gitlab.xfce.org/xfce/thunar/-/commit/3b54d9d7dbd7fd16235e2141c43a7f18718f5664Patch
https://gitlab.xfce.org/xfce/thunar/-/commit/9165a61f95e43cc0b5abf9b98eee2818a0191e0bPatch
https://gitlab.xfce.org/xfce/thunar/-/tagsRelease Notes
https://www.openwall.com/lists/oss-security/2021/05/09/2Mailing List, Third Party Advisory

Timeline

Published: May 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32563?

How severe is CVE-2021-32563?

CVE-2021-32563 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.08% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32563?

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-2021-32563?

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

Scan your code now

Source: NVD / NIST