What is CVE-2026-93543?

CVE-2026-93543 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Out-of-bounds read in libXi's XI2 class parser

Which CVE IDs does CVE-2026-93543 cover?

CVE-2026-93543 covers the following CVE IDs: CVE-2026-93543. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-93543?

CVE-2026-93543 has a CVSS v3 base score of 7.4, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-93543?

CVE-2026-93543 affects 1 product, including: azl3 libXi 1.8.1-1 on Azure Linux 3.0.

CVE-2026-93543HighCVSS 7.4

Out-of-bounds read in libXi's XI2 class parser

Vendor

Microsoft Security Response Center (MSRC)

Published

September 28, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-93543 →

🎯 Affected products1

azl3 libXi 1.8.1-1 on Azure Linux 3.0

✅ Remediation

KBRelease Notes (Security Update) — fixed build 1.8.4-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-93543
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade