CVE-2023-36777 Microsoft Exchange Server Information Disclosure Vulnerability
An attacker can exploit a deserialization flaw in Microsoft Exchange Server to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-36777?
CVE-2023-36777 is a medium-severity unsafe deserialization vulnerability in Microsoft Exchange Server, published on 12 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Microsoft Exchange Server Information Disclosure Vulnerability
Weakness: CWE-502
Which versions are affected by CVE-2023-36777?
It affects 1 product.
Products include Microsoft Exchange Server.
How do I fix CVE-2023-36777?
No fix has been published for CVE-2023-36777 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-2023-36777 being exploited?
There is no known exploitation of CVE-2023-36777 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-2q84-994w-cvhj.