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Microsoft Security Response CenterCVE-2026-54876

Client-Side Memory Leak in OCSP Response Checking

HighVendor CVSS 7.5 / 10 1 CVE Published Aug 9, 2026 at 1:03 AM UTC

Summary

Mariner

Products covered

  • azl3 cloud-hypervisor 52.0.152-1 on Azure Linux 3.0

  • azl3 openvmm 0.1.0-1 on Azure Linux 3.0

Remediation

See the Microsoft Security Update Guide for the update that applies to your product.

CVEs in this advisory 1

Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added affected products: azl3 openvmm 0.1.0-1 on Azure Linux 3.0.
    • The vendor changed its remediation guidance.
    • Added affected products: azl3 cloud-hypervisor 52.0.152-1 on Azure Linux 3.0.
    • Removed affected products: azl3 kata-containers 3.32.0.kata0-2 on Azure Linux 3.0.

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.