What is CVE-2026-88807?

CVE-2026-88807 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow

Which CVE IDs does CVE-2026-88807 cover?

CVE-2026-88807 covers the following CVE IDs: CVE-2026-88807. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-88807?

CVE-2026-88807 affects 1 product, including: azl3 libXrender 0.9.11-1 on Azure Linux 3.0.

CVE-2026-88807Medium

libXrender RenderQueryPictFormats Reply Heap-based Buffer Overflow

Vendor

Microsoft Security Response Center (MSRC)

Published

September 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-88807 →

🎯 Affected products1

azl3 libXrender 0.9.11-1 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update) — fixed build 0.9.13-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88807
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade