CVE-2021-23556

Name: CVE-2021-23556
Creator: NVD / NIST
Published: 2022-03-17T12:15:07.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8/10EPSS 1.11%

Last modified Jun 17, 2026

CVE-2021-23556 is a high-severity vulnerability rated 8/10 on the CVSS scale. The package guake before 3.8.5 are vulnerable to Exposed Dangerous Method or Function due to the exposure of execute_command and execute_command_by_uuid methods via the d-bus interface, which makes it possible for a malicious user to run an arbitrary command via the d-bus method. **Note:** Exploitation requires the user to have installed another malicious program that will be able to send dbus signals or run terminal commands.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

The package guake before 3.8.5 are vulnerable to Exposed Dangerous Method or Function due to the exposure of execute_command and execute_command_by_uuid methods via the d-bus interface, which makes it possible for a malicious user to run an arbitrary command via the d-bus method. **Note:** Exploitation requires the user to have installed another malicious program that will be able to send dbus signals or run terminal commands.

Metrics

CVSS 3.1

8/10

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

EPSS Probability

1.11%

61.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Guake-Project	Guake	< 3.8.5

References

https://github.com/Guake/guake/issues/1796Exploit, Issue Tracking, Third Party Advisory
https://github.com/Guake/guake/pull/2017Issue Tracking, Patch, Third Party Advisory
https://github.com/Guake/guake/pull/2017/commits/e3d671120bfe7ba28f50e256cc5e8a629781b888Patch, Third Party Advisory
https://github.com/Guake/guake/releasesRelease Notes, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-GUAKE-2386334Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/Guake/guake/issues/1796Exploit, Issue Tracking, Third Party Advisory
https://github.com/Guake/guake/pull/2017Issue Tracking, Patch, Third Party Advisory
https://github.com/Guake/guake/pull/2017/commits/e3d671120bfe7ba28f50e256cc5e8a629781b888Patch, Third Party Advisory
https://github.com/Guake/guake/releasesRelease Notes, Third Party Advisory
https://snyk.io/vuln/SNYK-PYTHON-GUAKE-2386334Exploit, Issue Tracking, Patch, Third Party Advisory

Timeline

Published: Mar 17, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23556?

How severe is CVE-2021-23556?

CVE-2021-23556 has a CVSS score of 8/10 (HIGH severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23556?

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-2021-23556?

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

Scan your code now

Source: NVD / NIST