macOS · Application version · June 12, 2026

Microsoft Defender 101.26042.0020

Microsoft Defender 101.26042.0020, released June 12, 2026, fixes 5 CVEs in Microsoft Defender. None of them is reported as exploited. Patch Radar priority: High. The latest Microsoft Defender is 101.26092.0012, which also fixes every one of these CVEs.

High

Superseded. The latest Microsoft Defender is 101.26092.0012, which also fixes every CVE on this page. Install that instead.

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.0

Base score, 0 to 10

Highest EPSS

0.0048

41st percentile

Priority of the 5 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 2

Applies to

Product	Version
Microsoft Defender	101.26042.0020

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-56178	Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability	7.0	0.0023	Exploitation Less Likely
High	CVE-2026-45647	Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability	7.0	0.0022	Exploitation Less Likely
High	CVE-2026-50658	Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability	7.0	0.0020	Exploitation Less Likely
Routine	CVE-2026-54123	Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability	5.5	0.0048	Exploitation Less Likely
Routine	CVE-2026-50657	Microsoft Defender for Endpoint for Mac Information Disclosure Vulnerability	5.5	0.0040	Exploitation Less Likely

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