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HIGH severity

CVE-2026-96164 — Microsoft

HIGH

CVE-2026-96164 is a high-severity (CVSS 8.8) CWE-122 vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.

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 ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs50th percentile — riskier than 50% 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

Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code 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-2026-96164. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable.

Frequently Asked Questions

Heap-based buffer overflow in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
O3 Security · Impact-Aware SCA

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CVE-2026-96164: Microsoft (High 8.8)