What is CVE-2026-56116?

CVE-2026-56116 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling

Which CVE IDs does CVE-2026-56116 cover?

CVE-2026-56116 covers the following CVE IDs: CVE-2026-56116. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-56116?

CVE-2026-56116 has a CVSS v3 base score of 6.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-56116?

CVE-2026-56116 affects 3 products, including: azl3 dhcpcd 10.0.8-1 on Azure Linux 3.0; azl3 dhcpcd 10.0.8-2 on Azure Linux 3.0; azl3 dhcpcd 10.0.8-4 on Azure Linux 3.0.

CVE-2026-56116MediumCVSS 6.5

dhcpcd Memory Leak DoS via IPv6 Router Advertisement Handling

Vendor

Microsoft Security Response Center (MSRC)

Published

June 30, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-56116 →

🎯 Affected products3

azl3 dhcpcd 10.0.8-1 on Azure Linux 3.0
azl3 dhcpcd 10.0.8-2 on Azure Linux 3.0
azl3 dhcpcd 10.0.8-4 on Azure Linux 3.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 10.0.8-2

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56116
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade