CVE-2025-49721

highpriority · track · 0EPSS 0.006 · 46 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (46th) EPSS

CVSS 7.8 · high

Is it mine?

183 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Heap-based buffer overflow in Windows Fast FAT Driver allows an unauthorized attacker to elevate privileges locally.

remediations

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

A vendor fix is available.

FixedWindows 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560
FixedWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560
FixedWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557
FixedWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557
FixedWindows 10 Version 21H2 for 32-bit Systemsmsrc_csaf
10.0.19044.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554
FixedWindows 10 Version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.19044.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554
FixedWindows 10 Version 21H2 for x64-based Systemsmsrc_csaf
10.0.19044.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554
FixedWindows 10 Version 22H2 for 32-bit Systemsmsrc_csaf
10.0.19045.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554
FixedWindows 10 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.19045.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554
FixedWindows 10 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.19045.6093:Security Update:https://support.microsoft.com/help/5062554
https://support.microsoft.com/help/5062554
FixedWindows 10 for 32-bit Systemsmsrc_csaf
10.0.10240.21073:Security Update:https://support.microsoft.com/help/5062561
https://support.microsoft.com/help/5062561
FixedWindows 10 for x64-based Systemsmsrc_csaf
10.0.10240.21073:Security Update:https://support.microsoft.com/help/5062561
https://support.microsoft.com/help/5062561
FixedWindows 11 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.22621.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552
FixedWindows 11 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.22621.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552
FixedWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552
FixedWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.5624:Security Update:https://support.microsoft.com/help/5062552
https://support.microsoft.com/help/5062552
FixedWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553
FixedWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1msrc_csaf
6.1.7601.27820:Security Only:https://support.microsoft.com/help/5062619
https://support.microsoft.com/help/5062619
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)msrc_csaf
6.1.7601.27820:Security Only:https://support.microsoft.com/help/5062619
https://support.microsoft.com/help/5062619
FixedWindows Server 2008 for 32-bit Systems Service Pack 2msrc_csaf
6.0.6003.23418:Security Only:https://support.microsoft.com/help/5062618
https://support.microsoft.com/help/5062618
FixedWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.23418:Security Only:https://support.microsoft.com/help/5062618
https://support.microsoft.com/help/5062618
FixedWindows Server 2008 for x64-based Systems Service Pack 2msrc_csaf
6.0.6003.23418:Security Only:https://support.microsoft.com/help/5062618
https://support.microsoft.com/help/5062618
FixedWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.23418:Security Only:https://support.microsoft.com/help/5062618
https://support.microsoft.com/help/5062618
FixedWindows Server 2012msrc_csaf
6.2.9200.25573:Monthly Rollup:https://support.microsoft.com/help/5062592
https://support.microsoft.com/help/5062592
FixedWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.25573:Monthly Rollup:https://support.microsoft.com/help/5062592
https://support.microsoft.com/help/5062592
FixedWindows Server 2012 R2msrc_csaf
6.3.9600.22676:Monthly Rollup:https://support.microsoft.com/help/5062597
https://support.microsoft.com/help/5062597
FixedWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.22676:Monthly Rollup:https://support.microsoft.com/help/5062597
https://support.microsoft.com/help/5062597
FixedWindows Server 2016msrc_csaf
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560
FixedWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.8246:Security Update:https://support.microsoft.com/help/5062560
https://support.microsoft.com/help/5062560
FixedWindows Server 2019msrc_csaf
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557
FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.7558:Security Update:https://support.microsoft.com/help/5062557
https://support.microsoft.com/help/5062557
FixedWindows Server 2022msrc_csaf
10.0.20348.3932:Security Update:https://support.microsoft.com/help/5062572
https://support.microsoft.com/help/5062572
FixedWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.3932:Security Update:https://support.microsoft.com/help/5062572
https://support.microsoft.com/help/5062572
FixedWindows Server 2022, 23H2 Edition (Server Core installation)msrc_csaf
10.0.25398.1732:Security Update:https://support.microsoft.com/help/5062570
https://support.microsoft.com/help/5062570
FixedWindows Server 2025msrc_csaf
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553
FixedWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.4652:Security Update:https://support.microsoft.com/help/5062553
https://support.microsoft.com/help/5062553

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

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

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:N/UI:R/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.8 · impact 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

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-122USCWE-122USCWE-122USCWE-122US

affected products (183)

Products and version ranges known to be affected.

Xerox FreeFlow Print Serverall versionscert_bundDEcpe:/a:xerox:freeflow_print_server:v2
Xerox FreeFlow Print Server 9all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:9
Xerox FreeFlow Print Server v7all versionscert_bundDEcpe:/a:xerox:freeflow_print_server:v7
Microsoft Windows 10 Version 150710.0.10240.0 → 10.0.10240.21073enisa_euvdEU
Microsoft Windows 10 Version 160710.0.14393.0 → 10.0.14393.8246enisa_euvdEU
Microsoft Windows 10 Version 180910.0.17763.0 → 10.0.17763.7558enisa_euvdEU
Microsoft Windows 10 Version 21H210.0.19044.0 → 10.0.19044.6093enisa_euvdEU
Microsoft Windows 10 Version 22H210.0.19045.0 → 10.0.19045.6093enisa_euvdEU
Microsoft Windows 11 Version 23H210.0.22631.0 → 10.0.22631.5624enisa_euvdEU
Microsoft Windows 11 Version 24H210.0.26100.0 → 10.0.26100.4652enisa_euvdEU
Microsoft Windows 11 version 22H210.0.22621.0 → 10.0.22621.5624enisa_euvdEU
Microsoft Windows 11 version 22H310.0.22631.0 → 10.0.22631.5624enisa_euvdEU
Microsoft Windows Server 2008 R2 Service Pack 16.1.7601.0 → 6.1.7601.27820enisa_euvdEU
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 → 6.1.7601.27820enisa_euvdEU
Microsoft Windows Server 2008 Service Pack 26.0.6003.0 → 6.0.6003.23418enisa_euvdEU
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0 → 6.0.6003.23418enisa_euvdEU
Microsoft Windows Server 20126.2.9200.0 → 6.2.9200.25573enisa_euvdEU
Microsoft Windows Server 2012 (Server Core installation)6.2.9200.0 → 6.2.9200.25573enisa_euvdEU
Microsoft Windows Server 2012 R26.3.9600.0 → 6.3.9600.22676enisa_euvdEU
Microsoft Windows Server 2012 R2 (Server Core installation)6.3.9600.0 → 6.3.9600.22676enisa_euvdEU

showing 20 of 183

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2025-0213Kwetsbaarheden verholpen in Microsoft WindowsNL2025-07-08csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Windows.
WID-SEC-W-2025-1495Microsoft Windows: Mehrere SchwachstellenDeutsch2025-07-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Server, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows, Microsoft Windows Server 2022, Microsoft Windows 11 und Microsoft Windows Server 2025 ausnutzen, um erhöhte Rechte - sogar administrative Rechte - zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben, einen Denial-of-Service-Zustand zu verursachen und Spoofing-Angriffe durchzuführen.
WID-SEC-W-2025-1850Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen nicht spezifizierten AngriffDeutsch2025-08-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
msrc_CVE-2025-49721Windows Fast FAT File System Driver Elevation of Privilege Vulnerability2025-07-08csaf · 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 cert_bund ncsc_nl msrc_csaf NVD CVE.org MITRE

published 2025-07-08modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

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