CVE-2021-26569 Race condition in Synology DiskStation Manager (DSM)

Critical 9.8 Published Updated

Remote attackers can execute arbitrary code on Synology NAS devices by exploiting a race condition in the iSCSI snapshot communication core.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-26569?

CVE-2021-26569 is a critical vulnerability in Synology Diskstation Manager, published on 12 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Race Condition within a Thread 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.

Weakness: CWE-362, CWE-366

Which versions are affected by CVE-2021-26569?

It affects 1 product.

Products include Synology Diskstation Manager.

How do I fix CVE-2021-26569?

No fix has been published for CVE-2021-26569 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-26569 being exploited?

There is no known exploitation of CVE-2021-26569 in the wild and no public exploit code.

All Synology Diskstation Manager vulnerabilities

Sources

Also known as GHSA-xc56-v745-v4g3.

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