CVE-2021-38556

Name: CVE-2021-38556
Creator: NVD / NIST
Published: 2021-08-24T13:15:14.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 13.04%

Last modified Jun 17, 2026

CVE-2021-38556 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. includes/configure_client.php in RaspAP 2.6.6 allows attackers to execute commands via command injection.. EPSS estimates a 13.04% chance of exploitation in the next 30 days.

Description

includes/configure_client.php in RaspAP 2.6.6 allows attackers to execute commands via command injection.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

13.04%

95.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Raspap	Raspap	2.6.6

References

https://github.com/RaspAP/raspap-webguiProduct
https://github.com/RaspAP/raspap-webgui/blob/0e1d652c5e55f812aaf2a5908884e9db179416ee/includes/configure_client.phpThird Party Advisory
https://zerosecuritypenetrationtesting.com/?page_id=306Exploit, Third Party Advisory, VDB Entry, URL Repurposed
https://github.com/RaspAP/raspap-webguiProduct
https://github.com/RaspAP/raspap-webgui/blob/0e1d652c5e55f812aaf2a5908884e9db179416ee/includes/configure_client.phpThird Party Advisory
https://zerosecuritypenetrationtesting.com/?page_id=306Exploit, Third Party Advisory, VDB Entry, URL Repurposed

Timeline

Published: Aug 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38556?

includes/configure_client.php in RaspAP 2.6.6 allows attackers to execute commands via command injection.

How severe is CVE-2021-38556?

CVE-2021-38556 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 13.04% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38556?

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-2021-38556?

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

Scan your code now

Source: NVD / NIST