CVE-2021-43928

Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in mail sending and receiving component in Synology Mail Station before 20211105-10315 allows remote authenticated users to execute arbitrary commands via unspecified vectors.

Category

9.9
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.06% Top 25%
Vendor Advisory synology.com
Affected: Synology Mail Station
Published at:
Updated at:

References

Link Tags
https://www.synology.com/security/advisory/Synology_SA_21_28 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-43928?
CVE-2021-43928 has been scored as a critical severity vulnerability.
How to fix CVE-2021-43928?
To fix CVE-2021-43928, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43928 being actively exploited in the wild?
It is possible that CVE-2021-43928 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43928?
CVE-2021-43928 affects Synology Mail Station.
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