SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-46384

https://gitee.com/mingSoft/MCMS MCMS <=5.2.5 is affected by: RCE.

CRITICAL 9.8EPSS 2.22%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.22% probability · 83th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-306
Affected
mingsoft/mcms
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 2.22%26 October 202626 October 2026

EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.