CVE-2020-17103

highpriority · attend · 47EPSS 0.238 · 98 %ileexploit · PoCEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

7 exploits · PoC

Likely / severe?

23.8% (98th) EPSS

CVSS 7.2 · high

Is it mine?

62 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · msrc_csaf

EPSS · scored 2026-10-27

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.8880:Security Update:https://support.microsoft.com/help/5094123
https://support.microsoft.com/help/5094123
FixedWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.8880:Security Update:https://support.microsoft.com/help/5094123
https://support.microsoft.com/help/5094123
FixedWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.7219:Security Update:https://support.microsoft.com/help/5093998
https://support.microsoft.com/help/5093998
FixedWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.7219:Security Update:https://support.microsoft.com/help/5093998
https://support.microsoft.com/help/5093998
FixedWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.8655:Security Update:https://support.microsoft.com/help/5094126
https://support.microsoft.com/help/5094126
FixedWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.8655:Security Update:https://support.microsoft.com/help/5094126
https://support.microsoft.com/help/5094126
FixedWindows 11 Version 25H2 for ARM64-based Systemsmsrc_csaf
10.0.26200.8655:Security Update:https://support.microsoft.com/help/5094126
https://support.microsoft.com/help/5094126
FixedWindows 11 Version 25H2 for x64-based Systemsmsrc_csaf
10.0.26200.8655:Security Update:https://support.microsoft.com/help/5094126
https://support.microsoft.com/help/5094126
FixedWindows 11 Version 26H1 for ARM64-based Systemsmsrc_csaf
10.0.28000.2269:Security Update:https://support.microsoft.com/help/5095051
https://support.microsoft.com/help/5095051
FixedWindows 11 version 26H1 for x64-based Systemsmsrc_csaf
10.0.28000.2269:Security Update:https://support.microsoft.com/help/5095051
https://support.microsoft.com/help/5095051
FixedWindows Server 2019msrc_csaf
10.0.17763.8880:Security Update:https://support.microsoft.com/help/5094123
https://support.microsoft.com/help/5094123
FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.8880:Security Update:https://support.microsoft.com/help/5094123
https://support.microsoft.com/help/5094123
FixedWindows Server 2025msrc_csaf
10.0.26100.32995:Security Update:https://support.microsoft.com/help/5094125
https://support.microsoft.com/help/5094125
FixedWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.32995:Security Update:https://support.microsoft.com/help/5094125
https://support.microsoft.com/help/5094125

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:C/E:Hsecondary · CVSS-BT (t0sche)

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1 · impact 5.9

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NVD / NIST USexploitability 1.8 · impact 5.9

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USCWE-269US

exploits (7)

Public proof-of-concept and weaponised exploit code.

0xBlackash/CVE-2020-17103CVE-2020-17103PoC · poc_in_github
AlexLinov/MiniPlasma-RunnerCVE-2020-17103 adapted for C2 with split-binary SYSTEM callbackPoC · poc_in_github
CaptainChicky/MiniPlasmaCVE-2020-17103 was apparently not patched or the patch was reversed, regardless this the PoC for an LPE in cldflt.sysPoC · poc_in_github
arch1m3d/MiniPlasma-DetectionSigma detection rule for MiniPlasma (CVE-2020-17103)PoC · poc_in_github
dooodad/MiniPlasmaCVE-2020-17103 was apparently not patched or the patch was reversed, regardless this the PoC for an LPE in cldflt.sysPoC · poc_in_github
mohammadzarnian1357/MiniPlasmaCVE-2020-17103PoC · poc_in_github

affected products (62)

Products and version ranges known to be affected.

Microsoft Windows 10 Version 180910.0.17763.0 → 10.0.17763.8880enisa_euvdEU
Microsoft Windows 11 Version 23H210.0.22631.0 → 10.0.22631.7219enisa_euvdEU
Microsoft Windows 11 Version 24H210.0.26100.0 → 10.0.26100.8655enisa_euvdEU
Microsoft Windows 11 Version 25H210.0.26200.0 → 10.0.26200.8655enisa_euvdEU
Microsoft Windows 11 version 26H110.0.28000.0 → 10.0.28000.2269enisa_euvdEU
Microsoft Windows Server 201910.0.17763.0 → 10.0.17763.8880enisa_euvdEU
Microsoft Windows Server 2019 (Server Core installation)10.0.17763.0 → 10.0.17763.8880enisa_euvdEU
Microsoft Windows Server 202510.0.26100.0 → 10.0.26100.32995enisa_euvdEU
Microsoft Windows Server 2025 (Server Core installation)10.0.26100.0 → 10.0.26100.32995enisa_euvdEU
Microsoft Corp Windows 10 1803all versionsfstec_bduRU
Microsoft Corp Windows 10 1809all versionsfstec_bduRU
Microsoft Corp Windows 10 1903all versionsfstec_bduRU
Microsoft Corp Windows 10 1909all versionsfstec_bduRU
Microsoft Corp Windows 10 2004all versionsfstec_bduRU
Microsoft Corp Windows 10 20H2all versionsfstec_bduRU
Microsoft Corp Windows Server 1903 (Server Core Installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 1909 (Server Core Installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2004 (Server Core Installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2019all versionsfstec_bduRU
Microsoft Corp Windows Server 2019 (Server Core installation)all versionsfstec_bduRU

showing 20 of 62

advisories (1)

Vendor and ecosystem advisories describing this.

msrc_CVE-2020-17103Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability2020-12-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu msrc_csaf NVD CVE.org MITRE

published 2020-12-10modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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