Published Oct 21, 2024Sources checked Oct 24, 2026
5.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2024-49988 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
What to do next
Remediation and response
Microsoft Security Response Center guidance
Vendor revision: Aug 12, 2026
CBL-Mariner Releases
Vendor-listed releases
6.6.57.1-2
CISA KEVNot listedBased on the latest collected catalog
EPSS0.6%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2024-49988?
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: add refcnt to ksmbd_conn struct
When sending an oplock break request, opinfo->conn is used, But freed ->conn can be used on multichannel. This patch add a reference count to the ksmbd_conn struct so that it can be freed when it is no longer used.