#windows

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to win a race condition.

**What kind of security feature could be bypassed by exploiting this vulnerability?** This Hyper-V vulnerability relates to a Virtual Machine Switch with virtual networking in Hyper-V Network Virtualization (HNV). It might be possible to bypass extended ACLs and other Windows security feature checks. See Create Security Policies with Extended Port Access Control Lists for information about extended ACLs.

**How could an attacker exploit this vulnerability?** An authenticated attacker could send a specially crafted request to a vulnerable LDAP server. Successful exploitation could result in the attacker's code running in the context of the SYSTEM account.

**How could an attacker exploit this vulnerability?** This vulnerability could be exploited over the network by an authenticated normal user through a low complexity attack on a server configured as the domain controller.

**How could an attacker exploit this vulnerability?** An authenticated attacker could send a specially crafted request to a vulnerable LDAP server. Successful exploitation could result in the attacker's code running in the context of the SYSTEM account.

**How could an attacker exploit this vulnerability?** An authenticated attacker could send a specially crafted request to a vulnerable LDAP server. Successful exploitation could result in the attacker's code running in the context of the SYSTEM account.

**How could an attacker exploit this vulnerability?** An attacker could exploit the vulnerability by convincing a user to connect a Lightweight Directory Access Protocol (LDAP) client to a malicious LDAP server. When the vulnerability is successfully exploited this could allow the malicious server to gain remote code execution within the LDAP client.

**How could an attacker exploit this vulnerability?** An authenticated attacker could send a specially crafted request to a vulnerable LDAP server. Successful exploitation could result in the attacker's code running in the context of the SYSTEM account.

**Are there any special conditions necessary for this vulnerability to be exploitable?** Yes. This vulnerability is only exploitable if the MaxReceiveBuffer LDAP policy is set to a value higher than the default value. Systems with the default value of this policy would not be vulnerable. For more information, please see LDAP policies.