What is CVE-2026-23126?

CVE-2026-23126 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. netdevsim: fix a race issue related to the operation on bpf_bound_progs list

Which CVE IDs does CVE-2026-23126 cover?

CVE-2026-23126 covers the following CVE IDs: CVE-2026-23126. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-23126?

CVE-2026-23126 has a CVSS v3 base score of 4.7, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-23126?

CVE-2026-23126 affects 3 products, including: cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0; cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0.

CVE-2026-23126MediumCVSS 4.7

netdevsim: fix a race issue related to the operation on bpf_bound_progs list

Vendor

Microsoft Security Response Center (MSRC)

Published

March 20, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-23126 →

🎯 Affected products3

cbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0
cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0

✅ Remediation

KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23126
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade