CVE-2021-46384

Name: CVE-2021-46384
Creator: NVD / NIST
Published: 2022-03-04T22:15:19.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.08%

Last modified Jun 17, 2026

CVE-2021-46384 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. https://gitee.com/mingSoft/MCMS MCMS <=5.2.5 is affected by: RCE. The impact is: execute arbitrary code (remote). EPSS estimates a 2.08% chance of exploitation in the next 30 days.

Description

https://gitee.com/mingSoft/MCMS MCMS <=5.2.5 is affected by: RCE. The impact is: execute arbitrary code (remote). The attack vector is: ${"freemarker.template.utility.Execute"?new()("calc")}. ¶¶ MCMS has a pre-auth RCE vulnerability through which allows unauthenticated attacker with network access via http to compromise MCMS. Successful attacks of this vulnerability can result in takeover of MCMS.

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

2.08%

79.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Mingsoft	Mcms	<= 5.2.5

References

https://gitee.com/mingSoft/MCMS/issues/I4QZ1OExploit, Issue Tracking, Third Party Advisory
https://gitee.com/mingSoft/MCMS/issues/I4QZ1OExploit, Issue Tracking, Third Party Advisory

Timeline

Published: Mar 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46384?

How severe is CVE-2021-46384?

CVE-2021-46384 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46384?

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-2021-46384?

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

Scan your code now

Source: NVD / NIST