SARA / Free Tools / CVE / CVE-2020-0787

CVE-2020-0787 — Microsoft Windows Background Intelligent Transfer Service (BITS) Improper Privil

An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability'.

CVSS
EPSS
60.81% (top 1.70%)
CWE
Published
2020-03-12T15:48:16.000Z
Last modified
2025-10-21T23:35:48.780Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2022-01-28
BOD 22-01 due
2022-07-28
Ransomware use
Known

01What is this vulnerability?

An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability'.

02Affected products

VendorProductVersions
MicrosoftWindows10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems, 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems, 10 Version 1709 for 32-bit Systems, 10 Version 1709 for x64-based Systems, 10 Version 1709 for ARM64-based Systems, 10 for 32-bit Systems, 10 for x64-based Systems, 10 Version 1607 for 32-bit Systems, 10 Version 1607 for x64-based Systems, 7 for 32-bit Systems Service Pack 1, 7 for x64-based Systems Service Pack 1, 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1
MicrosoftWindows Serverversion 1803 (Core Installation), 2019, 2019 (Core installation), 2016, 2016 (Core installation), 2008 for 32-bit Systems Service Pack 2, 2008 for 32-bit Systems Service Pack 2 (Core installation), 2008 for Itanium-Based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2, 2008 for x64-based Systems Service Pack 2 (Core installation), 2008 R2 for Itanium-Based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1, 2008 R2 for x64-based Systems Service Pack 1 (Core installation), 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation)
MicrosoftWindows 10 Version 1909 for 32bit Systems — unspecified
MicrosoftWindows 10 Version 1909 for x64based Systems — unspecified
MicrosoftWindows 10 Version 1909 for ARM64based Systems — unspecified
MicrosoftWindows Server, version 1909 (Server Core installation)unspecified
MicrosoftWindows 10 Version 1903 for 32bit Systems — unspecified
MicrosoftWindows 10 Version 1903 for x64based Systems — unspecified
MicrosoftWindows 10 Version 1903 for ARM64based Systems — unspecified
MicrosoftWindows Server, version 1903 (Server Core installation)unspecified

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-01-28. Ransomware use: Known.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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