VulnerabilityModified
CVE-2019-0732
A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka 'Windows Security Feature Bypass Vulnerability'.
HIGH 7.8EPSS 3.78%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka 'Windows Security Feature Bypass Vulnerability'.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.78% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
- Source
- secure@microsoft.com
References
- http://packetstormsecurity.com/files/152536/Microsoft-Windows-LUAFV-NtSetCachedSigningLevel-Device-Guard-Bypass.htmlThird Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0732Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/46716/Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/152536/Microsoft-Windows-LUAFV-NtSetCachedSigningLevel-Device-Guard-Bypass.htmlThird Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0732Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/46716/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.