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Not in CISA KEV
HIGH severity

CVE-2026-96134 — Microsoft

HIGH

CVE-2026-96134 is a high-severity (CVSS 7.5) CWE-190 vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.

Published
Updated
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    The records we use list no fixed release for CVE-2026-96134. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
O3 Security · Impact-Aware SCA

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CVE-2026-96134: Microsoft (High 7.5)