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Microsoft Security Response CenterCVE-2026-52491

An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the libtiff/tools/thumbnail.c: main() component

HighVendor CVSS 9.4 / 10 1 CVE Published Aug 29, 2026 at 1:08 AM UTC

Summary

Mariner

Products covered

  • azl3 libtiff 4.6.0-14 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.

    • The vendor changed its remediation guidance.

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.