CVE-2022-23277 Microsoft Exchange Server Remote Code Execution Vulnerability

High 8.8 Published Updated

Attackers can execute arbitrary code on Microsoft Exchange Server, requiring immediate patching by administrators.

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

What is CVE-2022-23277?

CVE-2022-23277 is a high-severity code injection vulnerability in Microsoft Exchange Server, published on 9 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Microsoft Exchange Server Remote Code Execution Vulnerability

Which versions are affected by CVE-2022-23277?

It affects 1 product.

Products include Microsoft Exchange Server.

How do I fix CVE-2022-23277?

No fix has been published for CVE-2022-23277 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2022-23277 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23277 exists.

Public exploit code: 1 Metasploit module and 1 proofs of concept on GitHub.

All Microsoft Exchange Server vulnerabilities

Sources

Also known as GHSA-364v-6m73-qv4g.

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