CVE-2026-69989
HighCVSS 8.1Exploitation Probability (EPSS)
Elevated risk52th percentile - higher than 52% of all known CVEs
Summary
Use after free in DNS Server allows an unauthorized attacker to execute code over a network.
Risk Assessment
An attacker could remotely take control of the system, potentially compromising data confidentiality, integrity, and availability.
Recommendation
Apply available security updates from the vendor and restrict access to the DNS service to trusted networks only.
Other vulnerabilities in DNS Server
See all- 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-2026-69827High
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 in DNS Server allows an unauthorized attacker to execute code over a network.