CVE-2021-3134

Name: CVE-2021-3134
Creator: NVD / NIST
Published: 2021-01-12T20:15:35.103+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2021-3134 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Mubu 2.2.1 allows local users to gain privileges to execute commands, aka CNVD-2020-68878.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

Mubu 2.2.1 allows local users to gain privileges to execute commands, aka CNVD-2020-68878.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.42%

33.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Mubu	Mubu	2.2.1

References

http://mubu.com/doc/d5501245199Release Notes, Vendor Advisory
https://www.cnvd.org.cn/flaw/show/2638444Third Party Advisory
http://mubu.com/doc/d5501245199Release Notes, Vendor Advisory
https://www.cnvd.org.cn/flaw/show/2638444Third Party Advisory

Timeline

Published: Jan 12, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3134?

Mubu 2.2.1 allows local users to gain privileges to execute commands, aka CNVD-2020-68878.

How severe is CVE-2021-3134?

CVE-2021-3134 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3134?

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-2021-3134?

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

Scan your code now

Source: NVD / NIST