CVE-2023-21710 Microsoft Exchange Server Remote Code Execution Vulnerability
Attackers can execute arbitrary code on Microsoft Exchange Server via a deserialization vulnerability, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-21710?
CVE-2023-21710 is a high-severity unsafe deserialization vulnerability in Microsoft Exchange Server, published on 14 Feb 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Microsoft Exchange Server Remote Code Execution Vulnerability
Weakness: CWE-502
Which versions are affected by CVE-2023-21710?
It affects 1 product.
Products include Microsoft Exchange Server.
How do I fix CVE-2023-21710?
No fix has been published for CVE-2023-21710 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2023-21710 being exploited?
There is no known exploitation of CVE-2023-21710 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Exchange Server
- CVE-2024-21410 Microsoft Exchange Server Privilege Escalation
- CVE-2021-34473 Microsoft Exchange Server Remote Code Execution
- CVE-2021-26855 Microsoft Exchange Server Remote Code Execution
- CVE-2021-34523 Microsoft Exchange Server Privilege Escalation
- CVE-2023-21529 Microsoft Exchange Server Deserialization of Untrusted Data
Sources
Also known as GHSA-8887-qg2p-vqp2.