CVE-2021-33356

Name: CVE-2021-33356
Creator: NVD / NIST
Published: 2021-06-09T18:15:08.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 5.35%

Last modified Jun 17, 2026

CVE-2021-33356 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Multiple privilege escalation vulnerabilities in RaspAP 1.5 to 2.6.5 could allow an authenticated remote attacker to inject arbitrary commands to /installers/common.sh component that can result in remote command execution with root privileges.. EPSS estimates a 5.35% chance of exploitation in the next 30 days.

Description

Multiple privilege escalation vulnerabilities in RaspAP 1.5 to 2.6.5 could allow an authenticated remote attacker to inject arbitrary commands to /installers/common.sh component that can result in remote command execution with root privileges.

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

5.35%

91.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Raspap	Raspap	>= 1.5, <= 2.6.5

References

https://gist.github.com/omriinbar/52c000c02a6992c6ce68d531195f69cfThird Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L216Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L231Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L314Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L407Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L510Exploit, Third Party Advisory
https://gist.github.com/omriinbar/52c000c02a6992c6ce68d531195f69cfThird Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L216Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L231Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L314Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L407Exploit, Third Party Advisory
https://github.com/RaspAP/raspap-webgui/blob/5a7b77459839c9420fac0d10ec28cee1af9bb782/installers/common.sh#L510Exploit, Third Party Advisory

Timeline

Published: Jun 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33356?

How severe is CVE-2021-33356?

CVE-2021-33356 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 5.35% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33356?

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-2021-33356?

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

Scan your code now

Source: NVD / NIST