CVE-2026-50658Patch(microsoft / defender_for_endpoint)

LOWCVSS 7.0 · HIGH

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

Time-of-check time-of-use (toctou) race condition in Microsoft Defender allows an authorized attacker to elevate privileges locally.

microsoft CVEs Back to dashboard

0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50658

Weakness type (CWE)

CWE-367

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
Technical details provided 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-2026-50658-update-defender-for-mac-to-build-101-26042-0020.438612/?utm_source=x&utm_medium=social&utm_campaign=news_node84

Full discourse1 post

Windows Forum@windowsforum98d
Patch
🪟 Defender for Mac has a local privilege-escalation flaw—because apparently antivirus needs antivirus. Update to build 101.26042.0020+ and verify every managed Mac; auto-update alone isn’t a plan. https://windowsforum.com/threads/cve-2026-50658-update-defender-for-mac-to-build-101-26042-0020.438612/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #PrivilegeEscalation #MacosSecurity #MicrosoftDefender https://t.co/kThF9qJ9Mo
Post summary
The tweet alerts users to a local privilege‑escalation vulnerability (CVE‑2026‑50658) in Defender for Mac and recommends updating to build 101.26042.0020+ for remediation.
0000011
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	-

Explore more

Back to dashboard microsoft CVEs defender_for_endpoint vulnerabilities