CVE-2026-50657Patch(microsoft / defender_for_endpoint)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch microsoft defender_for_endpoint systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Exposure of private personal information to an unauthorized actor in Microsoft Defender allows an authorized attacker to disclose information locally.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50657

Weakness type (CWE)

CWE-359

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

defender_for_endpoint

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
1 total mentions across 1 day

Affected systems

Vendors

microsoft

Products

defender_for_endpoint

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Referenced assets1 URL

By indicator

https://windowsforum.com/threads/cve-2026-50657-update-defender-for-mac-to-101-26042-0020.438610/?utm_source=x&utm_medium=social&utm_campaign=news_node84

Full discourse1 post

Windows Forum@windowsforum92d
Patch
🪟 Fresh malware definitions won’t fix CVE-2026-50657. Defender for Endpoint on Mac needs build 101.26042.0020—because even the security app can become the security problem. https://windowsforum.com/threads/cve-2026-50657-update-defender-for-mac-to-101-26042-0020.438610/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #EndpointSecurity #MacosSecurity #MicrosoftDefender #Cve202650657 https://t.co/PZoEagh00w
Post summary
The post notes that updating Microsoft Defender for Endpoint on Mac to build 101.26042.0020 is required to address CVE‑2026‑50657, indicating that malware definitions alone will not resolve the issue.
0000041
1.2K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	defender_for_endpoint	-	macos	-

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