CVE-2026-77891
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
Out-of-bounds read in Windows DHCP Server allows an authenticated attacker to execute code locally.
Risk Assessment
The attack may allow execution of malicious code on the DHCP server, potentially leading to server compromise and network disruption.
Recommendation
Install Windows security updates for the DHCP 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)
Out-of-bounds read in Windows DHCP Server allows an authorized attacker to execute code locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS