CVE-2026-70568
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
Heap-based buffer overflow in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit the vulnerability to execute code with elevated privileges, potentially leading to firewall disablement or system takeover.
Recommendation
Apply security patches from the Windows vendor.
Other vulnerabilities in Windows Defender Firewall Service
See all- CVE-2026-83679High
Use after free in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-68831Medium
A vulnerability in the Windows Defender Firewall Service involves files or directories accessible to external parties. An authorized attacker could exploit this to disclose information locally.
- CVE-2026-61936Medium
Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a security feature locally.
- CVE-2025-62468Medium
Out-of-bounds read in Windows Defender Firewall Service allows an authorized attacker to disclose information locally.
Original NVD description (English source)
Heap-based buffer overflow in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS