CVE-2016-3227
CriticalSummary
A use-after-free vulnerability in the DNS Server component in Microsoft Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted requests.
Risk Assessment
Attackers can exploit this vulnerability to gain control over the system, posing a serious security threat to the organization.
Recommendation
It is recommended to update the system to the latest version to mitigate this vulnerability and to monitor DNS server logs for potential attack attempts.
Other vulnerabilities in DNS Server
See all- CVE-2026-69989High
Use after free in DNS Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-69827High
Concurrent execution using shared resource with improper synchronization ('race condition') in DNS Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-69782High
Race condition in DNS Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-50426Medium
Relative path traversal vulnerability in DNS Server allows an authorized attacker to execute code over an adjacent network.
- CVE-2026-49169High
Use-After-Free vulnerability in DNS Server allows an authorized attacker to execute code remotely over the network. The issue stems from improper memory management when processing specially crafted DNS queries.
- CVE-2026-42000Medium
Insufficient validation of names during AXFR (DNS zone transfer) may allow an attacker to inject malicious or malformed data.
Original NVD description (English source)
Use-after-free vulnerability in the DNS Server component in Microsoft Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted requests, aka "Windows DNS Server Use After Free Vulnerability."