CVE-2026-96113
CriticalCVSS 9.8Summary
A heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network. The vulnerability stems from improper memory handling during DNS query processing.
Risk Assessment
An attacker could remotely execute arbitrary code in the context of the DNS service, potentially leading to DNS server takeover and redirection of network traffic.
Recommendation
Immediately apply security patches for DNS Server and consider restricting service access from untrusted networks.
Other vulnerabilities in DNS Server
See all- CVE-2026-83869Critical
Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.
- CVE-2016-3227Critical
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.
- 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)
Heap-based buffer overflow in DNS Server allows an unauthorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS