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CVE-2021-43928

HIGHCVSS 8.8/10EPSS 1.88%

Last modified

CVE-2021-43928 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.88% chance of exploitation in the next 30 days.

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.

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
1.88%

76.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SynologyMail Station< 20211105

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-43928?
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.
How severe is CVE-2021-43928?
CVE-2021-43928 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.88% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43928?
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-2021-43928?

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

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Source: NVD / NIST