What is CVE-2026-50252?

CVE-2026-50252 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Possible cache poisoning attack by mapping source port population per thread

Which CVE IDs does CVE-2026-50252 cover?

CVE-2026-50252 covers the following CVE IDs: CVE-2026-50252. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by CVE-2026-50252?

CVE-2026-50252 affects 1 product, including: azl3 unbound 1.25.1-1 on Azure Linux 3.0.

CVE-2026-50252Medium

Possible cache poisoning attack by mapping source port population per thread

Vendor

Microsoft Security Response Center (MSRC)

Published

July 23, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-50252 →

🎯 Affected products1

azl3 unbound 1.25.1-1 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 1.25.2-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50252
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade