Vulnerability Name:

CVE-2019-1255 (CCN-167448)

Assigned:2018-11-26
Published:2019-09-23
Updated:2021-09-09
Summary:A denial of service vulnerability exists when Microsoft Defender improperly handles files, aka 'Microsoft Defender Denial of Service Vulnerability'.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
7.0 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-1255

Source: XF
Type: UNKNOWN
ms-defender-cve20191255-dos(167448)

Source: CCN
Type: Microsoft Security TechCenter - Security Update Guide
Microsoft Defender Denial of Service Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1255

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:windows_defender:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_10:1809:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1903:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_1803:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10:1607:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1803:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1703:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1709:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_1903:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
  • OR cpe:/o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:security_essentials:-:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:system_center_endpoint_protection:*:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:system_center_endpoint_protection:2012:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:system_center_endpoint_protection:2012:r2:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:security_essentials:*:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:forefront_endpoint_protection:2010:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:system_center_2012_endpoint_protection:*:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:windows_defender:*:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:system_center_2012_r2_endpoint_protection:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft windows defender -
    microsoft windows 10 1809
    microsoft windows 10 1903
    microsoft windows server 2016 1803
    microsoft windows server 2008 - sp2
    microsoft windows server 2008 r2 sp1
    microsoft windows 10 1607
    microsoft windows server 2016 -
    microsoft windows 7 - sp1
    microsoft windows 8.1 -
    microsoft windows 10 1803
    microsoft windows 10 1703
    microsoft windows server 2019 -
    microsoft windows 10 1709
    microsoft windows server 2012 r2
    microsoft windows server 2016 1903
    microsoft windows 10 -
    microsoft windows rt 8.1 -
    microsoft windows server 2008 r2 sp1
    microsoft windows server 2012 -
    microsoft forefront endpoint protection 2010 -
    microsoft security essentials -
    microsoft system center endpoint protection *
    microsoft system center endpoint protection 2012 -
    microsoft system center endpoint protection 2012 r2
    microsoft security essentials *
    microsoft forefront endpoint protection 2010
    microsoft system center 2012 endpoint protection *
    microsoft windows defender *
    microsoft system center 2012 r2 endpoint protection *