CVE-2019-1255
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka ...
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
- Record
CVE-2019-1255- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
- Record
CVE-2019-1255- Updated
- 2026-11-02
EUVDEUVD-2019-9821 No score
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
- Record
EUVD-2019-9821- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pr8x-gg94-wfq2
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka ...
A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
- Record
GHSA-pr8x-gg94-wfq2- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
- microsoft forefront endpoint protection 2010
- microsoft forefront endpoint protection
- microsoft security essentials
- microsoft system center
- microsoft system center endpoint protection
- microsoft windows defender on windows 10 for 32-bit systems
- microsoft windows defender on windows 10 for x64-based systems
- microsoft windows defender on windows 10 version 1607 for 32-bit systems
- microsoft windows defender on windows 10 version 1607 for x64-based systems
- microsoft windows defender on windows 10 version 1703 for 32-bit systems
- microsoft windows defender on windows 10 version 1703 for x64-based systems
- microsoft windows defender on windows 10 version 1709 for 32-bit systems
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- microsoft windows defender on windows 10 version 1709 for arm64-based systems
- microsoft windows defender on windows 10 version 1709 for x64-based systems
- microsoft windows defender on windows 10 version 1803 for 32-bit systems
- microsoft windows defender on windows 10 version 1803 for arm64-based systems
- microsoft windows defender on windows 10 version 1803 for x64-based systems
- microsoft windows defender on windows 10 version 1809 for 32-bit systems
- microsoft windows defender on windows 10 version 1809 for arm64-based systems
- microsoft windows defender on windows 10 version 1809 for x64-based systems
- microsoft windows defender on windows 10 version 1903 for 32-bit systems
- microsoft windows defender on windows 10 version 1903 for arm64-based systems
- microsoft windows defender on windows 10 version 1903 for x64-based systems
- microsoft windows defender on windows 7 for 32-bit systems
- microsoft windows defender on windows 7 for x64-based systems
- microsoft windows defender on windows 8.1 for 32-bit systems
- microsoft windows defender on windows 8.1 for x64-based systems
- microsoft windows defender on windows rt 8.1
- microsoft windows defender on windows server 2008 for 32-bit systems
- microsoft windows defender on windows server 2008 for 32-bit systems (server core installation)
- microsoft windows defender on windows server 2008 for itanium-based systems
- microsoft windows defender on windows server 2008 r2 for itanium-based systems
- microsoft windows defender on windows server 2008 r2 for x64-based systems
- microsoft windows defender on windows server 2008 r2 for x64-based systems (server core installation)
- microsoft windows defender on windows server 2012
- microsoft windows defender on windows server 2012 (server core installation)
- microsoft windows defender on windows server 2012 r2
- microsoft windows defender on windows server 2012 r2 (server core installation)
- microsoft windows defender on windows server 2016
- microsoft windows defender on windows server 2016 (server core installation)
- microsoft windows defender on windows server 2019
- microsoft windows defender on windows server 2019 (server core installation)
- microsoft windows defender on windows server, version 1803 (server core installation)
- microsoft windows defender on windows server, version 1903 (server core installation)
- microsoft windows defender
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-1255 is a high vulnerability (CVSS 7.5) in Microsoft Forefront Endpoint Protection 2010, published September 23, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.15%, the 90th percentile. No source names a fixed version.