Published Aug 20, 2023Sources checked Oct 30, 2026
7.5HIGHCVSS out of 10
What this means
Review the available evidence
CVE-2023-37369 and is rated High severity with a CVSS score of 7.5. 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: Oct 21, 2026
CBL-Mariner Releases
Vendor-listed releases
5.12.11-9
CISA KEVNot listedBased on the latest collected catalog
EPSS1.6%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2023-37369?
In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.