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HIGH severity

CVE-2026-122986 — Microsoft

HIGH

CVE-2026-122986 is a high-severity (CVSS 7.8) Improper Privilege Management vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Improper privilege management in Microsoft Azure Kubernetes Service allows an authorized attacker to elevate privileges locally.

Published
Updated
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Nov 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs15th percentile — riskier than 15% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Description

Improper privilege management in Microsoft Azure Kubernetes Service 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-2026-122986. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Close the privilege gap rather than the entry point: audit which accounts, roles and service identities can reach the affected operation, drop the component to the least privilege it actually needs, and review file and directory permissions created by earlier installs — a default left in place is what makes this reachable.

Frequently Asked Questions

Improper privilege management in Microsoft Azure Kubernetes Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-122986: Microsoft (High 7.8)