What is CVE-2025-38488?

CVE-2025-38488 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. smb: client: fix use-after-free in crypt_message when using async crypto

Which CVE IDs does CVE-2025-38488 cover?

CVE-2025-38488 covers the following CVE IDs: CVE-2025-38488. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-38488?

CVE-2025-38488 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-38488?

CVE-2025-38488 affects 1 product, including: cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0.

CVE-2025-38488HighCVSS 7.8

smb: client: fix use-after-free in crypt_message when using async crypto

Vendor

Microsoft Security Response Center (MSRC)

Published

January 8, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-38488 →

🎯 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-2025-38488
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade