Microsoft Exchange Server Security Feature Bypass Vulnerability

Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.

Improper handling of additional special element in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Improper input validation in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.

Improper validation of syntactic correctness of input in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Microsoft Exchange Server Spoofing Vulnerability

<p>A spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user.</p> <p>This update addresses this vulnerability.</p> <p>To prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.</p>

Microsoft Exchange Server Information Disclosure Vulnerability

Microsoft Exchange Server Denial of Service Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Spoofing Vulnerability