CVE-2026-58627 windows 10 1607 vulnerability
Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
Quick answer
microsoft windows 10 1607 should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- -
- r2
Fixed versions
- Apply the latest vendor-supported patched version.
How to fix it
Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network. This can affect network availability if an exposed DHCP Server is abused. Patch affected Windows systems quickly and limit DHCP service access to the networks that truly need it. Watch for traffic spikes or crashes while updates are being rolled out.
- Locate Windows DHCP Server systems that match the affected release for CVE-2026-58627.
- Install the latest Microsoft security update using your normal patch process.
- Keep DHCP services reachable only from required internal network segments.
- Review firewall and VLAN rules around DHCP infrastructure.
- Monitor DHCP service health, memory, and restart events during rollout.
- Prepare a rollback or standby DHCP plan for critical networks.
- Escalate repeated service failures as a possible incident.
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Verify the fix
- Confirm the security update is installed on each DHCP server.
- Check that DHCP traffic for CVE-2026-58627 is limited to approved network paths.
- Verify clients can still obtain leases after the patch.
- Review service logs for crashes, high resource use, or unusual requests.
- Save patch and service health evidence.
Related categories
Trusted references
FAQ
What is affected by CVE-2026-58627?
microsoft windows 10 1607 versions listed as affected should be reviewed: -, r2.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
How are Fixnx security risk categories chosen?
Fixnx keeps one canonical risk page and assigns only broad, relevant categories such as ecosystem, technology area, or vulnerability class.