CVE-2026-83862

HighCVSS 8.8

Published: 13/10/2026(UTC)Updated: 23/10/2026(UTC)Translated: 23/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.33%

24th percentile - higher than 24% of all known CVEs

Summary

A use-after-free in Windows Network Load Balancing allows an unauthorized attacker to execute code over an adjacent network. Exploitation does not require prior account access.

Risk Assessment

An attacker on the same network can remotely execute code on a system running the vulnerable service, potentially taking control of the host. The risk applies to environments with NLB enabled.

Recommendation

Apply the Microsoft Windows security updates for Network Load Balancing. Limit network exposure of NLB services to trusted segments.

Other vulnerabilities in Windows Network Load Balancing

CVE-2023-33163High
A vulnerability in Windows Network Load Balancing allows for remote code execution. An attacker can exploit this flaw to gain control over the system.

Original NVD description (English source)

Use after free in Windows Network Load Balancing allows an unauthorized attacker to execute code over an adjacent network.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS