CVE-2026-68831
Windows Defender Firewall Service Information Disclosure vulnerability
MSRC advisory September 8, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-68831
- Affected products
- Windows Defender Firewall Service Information Disclosure · Microsoft Windows Defender Firewall Service Information Disclosure · Microsoft
What happened
Files or directories accessible to external parties in Windows Defender Firewall Service allows an authorized attacker to disclose information locally.
What it means for your business
Windows Defender Firewall Service Information Disclosure vulnerability (CVE-2026-68831) was added to Microsoft’s security update guidance. Files or directories accessible to external parties in Windows Defender Firewall Service allows an authorized attacker to disclose information locally. If you need help checking exposure, call (864) 335-9223.
Sources
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