CVE-2021-27647

Description

Out-of-bounds Read vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.05% Top 20%
Vendor Advisory synology.com
Affected: Synology Synology DiskStation Manager (DSM)
Published at:
Updated at:

References

Link Tags
https://www.synology.com/security/advisory/Synology_SA_20_26 vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-339/ third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2021-27647?
CVE-2021-27647 has been scored as a critical severity vulnerability.
How to fix CVE-2021-27647?
To fix CVE-2021-27647, 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-2021-27647 being actively exploited in the wild?
It is possible that CVE-2021-27647 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27647?
CVE-2021-27647 affects Synology Synology DiskStation Manager (DSM).
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