CVE-2026-105726
Microsoft Defender Information Disclosure Vulnerability
Microsoft Microsoft Defender for Endpoint for Windows
CVSS
5.5MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.38%Chance of exploitation activity in the next 30 days, higher than 30% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 4.18.26060.3008Microsoft Defender for Endpoint for WindowsCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Vendor and government advisories 1
Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.
Reports 1
1 outlet mention it. Reports are not confirmation; each links to its source.
Description
Out-of-bounds read in Microsoft Defender allows an authorized attacker to disclose information locally.
Text from CVE List
Affected versions 1
- Microsoft Defender for Endpoint for Windowsaffected: 1.0.0.0 before 4.18.26060.3008CVE List