CVE-2026-58627
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk55th percentile - higher than 55% of all known CVEs
Summary
An unauthorized attacker can cause uncontrolled resource consumption in the Windows DHCP Server, leading to a denial of service (DoS) over the network. The vulnerability stems from a lack of limits in processing certain DHCP requests.
Risk Assessment
An attacker can remotely overload the DHCP server, preventing clients from obtaining IP addresses and other network configurations, resulting in network outages and loss of connectivity for users.
Recommendation
Apply the security update provided by Microsoft for Windows DHCP Server immediately. Until the patch is installed, monitor DHCP traffic and implement firewall rules to restrict access to the server.
Other vulnerabilities in Windows DHCP Server
See all- CVE-2026-96934Critical
Windows DHCP Server is affected by a use after free vulnerability. This allows an unauthorized attacker to execute code over a network.
- CVE-2026-96320Critical
A heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network. The vulnerability stems from improper handling of input data.
- CVE-2026-72979Critical
Use-after-free vulnerability in Windows DHCP Server allows an unauthorized attacker to execute code remotely over a network.
- CVE-2026-69845Critical
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code remotely over a network.
- CVE-2026-56159Critical
A heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code remotely over a network.
- CVE-2026-50518Critical
Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code remotely over a network.
- CVE-2026-45602Critical
A vulnerability in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network. No CWE identifier is assigned for this issue.
- CVE-2026-88171High
Double free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-88120High
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
- CVE-2026-88119High
Use after free in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
Original NVD description (English source)
Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS