What is CVE-2026-22977?

CVE-2026-22977 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. net: sock: fix hardened usercopy panic in sock_recv_errqueue

Which CVE IDs does CVE-2026-22977 cover?

CVE-2026-22977 covers the following CVE IDs: CVE-2026-22977. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-22977?

CVE-2026-22977 has a CVSS v3 base score of 5.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-22977?

CVE-2026-22977 affects 1 product, including: cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0.

CVE-2026-22977MediumCVSS 5.5

net: sock: fix hardened usercopy panic in sock_recv_errqueue

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-22977 →

🎯 Affected products1

cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0

✅ Remediation

KBCBL-Mariner Releases (Security Update) — fixed build 5.15.200.1-1

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-22977
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade