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HIGH severity

CVE-2026-97000 — Microsoft

HIGH

CVE-2026-97000 is a high-severity (CVSS 7) NULL Pointer Dereference vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Null pointer dereference in Windows USM Communication Manager allows an authorized attacker to elevate privileges locally.

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

Description

Null pointer dereference in Windows USM Communication Manager allows an authorized attacker to elevate privileges locally.

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-2026-97000. 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

Null pointer dereference in Windows USM Communication Manager allows an authorized attacker to elevate privileges locally.
O3 Security · Impact-Aware SCA

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