What is CVE-2026-11573?

CVE-2026-11573 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Uncontrolled recursion in QDomDocument/QDomNode serialization causes stack exhaustion (QtXml)

Which CVE IDs does CVE-2026-11573 cover?

CVE-2026-11573 covers the following CVE IDs: CVE-2026-11573. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-11573?

CVE-2026-11573 affects 1 product, including: azl3 qtbase 6.6.3-5 on Azure Linux 3.0.

CVE-2026-11573High

Uncontrolled recursion in QDomDocument/QDomNode serialization causes stack exhaustion (QtXml)

Vendor

Microsoft Security Response Center (MSRC)

Published

September 13, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-11573 →

🎯 Affected products1

azl3 qtbase 6.6.3-5 on Azure Linux 3.0

✅ Remediation

Security Update — fixed build 6.6.3-6

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11573
patchhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade