What is CVE-2026-22693?

CVE-2026-22693 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Null Pointer Dereference in SubtableUnicodesCache::create leading to DoS

Which CVE IDs does CVE-2026-22693 cover?

CVE-2026-22693 covers the following CVE IDs: CVE-2026-22693. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-22693?

CVE-2026-22693 has a CVSS v3 base score of 5.3, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-22693?

CVE-2026-22693 affects 2 products, including: azl3 harfbuzz 8.3.0-3 on Azure Linux 3.0; azl3 harfbuzz 8.3.0-4 on Azure Linux 3.0.

CVE-2026-22693MediumCVSS 5.3

Null Pointer Dereference in SubtableUnicodesCache::create leading to DoS

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-22693 →

🎯 Affected products2

azl3 harfbuzz 8.3.0-3 on Azure Linux 3.0
azl3 harfbuzz 8.3.0-4 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 8.3.0-4

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-22693
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade