CVE-2026-81955

highpriority · track · 35EPSS 0.008 · 57 %ileDENLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.84% (57th) EPSS

CVSS 8.8 · high

Is it mine?

167 products

Check your exposure

Who says so?

4 sources

fstec_bdu · cert_bund · ncsc_nl · msrc_csaf

EPSS · scored 2026-10-23

Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

remediations

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

A vendor fix is available.

FixedMicrosoft 365 Apps for Enterprise for 32-bit Systemsmsrc_csaf
16.0.20326.20138:Security Update:https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates
https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates
FixedMicrosoft 365 Apps for Enterprise for 64-bit Systemsmsrc_csaf
16.0.20326.20138:Security Update:https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates
https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates
FixedMicrosoft Office 2016 (32-bit edition)msrc_csaf
16.0.5569.1003:Security Update:https://support.microsoft.com/help/5002916
https://support.microsoft.com/help/5002916
FixedMicrosoft Office 2016 (64-bit edition)msrc_csaf
16.0.5569.1003:Security Update:https://support.microsoft.com/help/5002916
https://support.microsoft.com/help/5002916
FixedMicrosoft Office 2019 for 32-bit editionsmsrc_csaf
16.0.10417.20207:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
FixedMicrosoft Office 2019 for 64-bit editionsmsrc_csaf
16.0.10417.20207:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
FixedMicrosoft Office 365 for Macmsrc_csaf
16.113.26091433:Security Update:https://www.microsoft.com/en-us/microsoft-365/mac/microsoft-365-for-mac?msockid=35f9adb0e74b61392038b90de6fe608c
https://www.microsoft.com/en-us/microsoft-365/mac/microsoft-365-for-mac?msockid=35f9adb0e74b61392038b90de6fe608c
FixedMicrosoft Office LTSC 2021 for 32-bit editionsmsrc_csaf
16.0.14334.20906:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
FixedMicrosoft Office LTSC 2021 for 64-bit editionsmsrc_csaf
16.0.14334.20906:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
FixedMicrosoft Office LTSC 2024 for 32-bit editionsmsrc_csaf
16.0.17932.20976:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
FixedMicrosoft Office LTSC 2024 for 64-bit editionsmsrc_csaf
16.0.17932.20976:Security Update:https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
FixedMicrosoft Office LTSC for Mac 2021msrc_csaf
16.113.26091433:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049
https://go.microsoft.com/fwlink/p/?linkid=831049
FixedMicrosoft Office LTSC for Mac 2024msrc_csaf
16.113.26091433:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049
https://go.microsoft.com/fwlink/p/?linkid=831049
FixedWindows 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.9504:Servicing Stack Update:https://support.microsoft.com/help/5122874
https://support.microsoft.com/help/5122874
FixedWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.9504:Servicing Stack Update:https://support.microsoft.com/help/5122874
https://support.microsoft.com/help/5122874
FixedWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.9245:Security Update:https://support.microsoft.com/help/5122876
https://support.microsoft.com/help/5122876
FixedWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.9245:Security Update:https://support.microsoft.com/help/5122876
https://support.microsoft.com/help/5122876
FixedWindows 10 Version 21H2 for 32-bit Systemsmsrc_csaf
10.0.19044.7725:Security Update:https://support.microsoft.com/help/5122878
https://support.microsoft.com/help/5122878
FixedWindows 10 Version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.19044.7725:Security Update:https://support.microsoft.com/help/5122878
https://support.microsoft.com/help/5122878
FixedWindows 10 Version 21H2 for x64-based Systemsmsrc_csaf
10.0.19044.7725:Security Update:https://support.microsoft.com/help/5122878
https://support.microsoft.com/help/5122878
FixedWindows 10 Version 22H2 for 32-bit Systemsmsrc_csaf
10.0.19045.7725:Security Update:https://support.microsoft.com/help/5122878
https://support.microsoft.com/help/5122878
FixedWindows 10 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.19045.7725:Security Update:https://support.microsoft.com/help/5122878
https://support.microsoft.com/help/5122878
FixedWindows 10 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.19045.7725:Security Update:https://support.microsoft.com/help/5122878
https://support.microsoft.com/help/5122878
FixedWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.7582:Security Update:https://support.microsoft.com/help/5122880
https://support.microsoft.com/help/5122880
FixedWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.7582:Security Update:https://support.microsoft.com/help/5122880
https://support.microsoft.com/help/5122880
FixedWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
FixedWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
FixedWindows 11 Version 25H2 for ARM64-based Systemsmsrc_csaf
10.0.26200.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
FixedWindows 11 Version 25H2 for x64-based Systemsmsrc_csaf
10.0.26200.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
FixedWindows 11 Version 26H1 for ARM64-based Systemsmsrc_csaf
10.0.28000.2954:Security Update:https://support.microsoft.com/help/5124012
https://support.microsoft.com/help/5124012
FixedWindows 11 version 26H1 for x64-based Systemsmsrc_csaf
10.0.28000.2954:Security Update:https://support.microsoft.com/help/5124012
https://support.microsoft.com/help/5124012
FixedWindows Server 2012msrc_csaf
6.2.9200.26349:Monthly Rollup:https://support.microsoft.com/help/5123065
https://support.microsoft.com/help/5123065
FixedWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.26349:Monthly Rollup:https://support.microsoft.com/help/5123065
https://support.microsoft.com/help/5123065
FixedWindows Server 2012 R2msrc_csaf
6.3.9600.23398:Monthly Rollup:https://support.microsoft.com/help/5123066
https://support.microsoft.com/help/5123066
FixedWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.23398:Monthly Rollup:https://support.microsoft.com/help/5123066
https://support.microsoft.com/help/5123066
FixedWindows Server 2016msrc_csaf
10.0.14393.9504:Servicing Stack Update:https://support.microsoft.com/help/5122874
https://support.microsoft.com/help/5122874
FixedWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.9504:Servicing Stack Update:https://support.microsoft.com/help/5122874
https://support.microsoft.com/help/5122874
FixedWindows Server 2019msrc_csaf
10.0.17763.9245:Security Update:https://support.microsoft.com/help/5122876
https://support.microsoft.com/help/5122876
FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.9245:Security Update:https://support.microsoft.com/help/5122876
https://support.microsoft.com/help/5122876
FixedWindows Server 2022msrc_csaf
10.0.20348.5622:Security Update:https://support.microsoft.com/help/5122882
https://support.microsoft.com/help/5122882
FixedWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.5622:Security Update:https://support.microsoft.com/help/5122882
https://support.microsoft.com/help/5122882
FixedWindows Server 2025msrc_csaf
10.0.26100.33438:Security Update:https://support.microsoft.com/help/5122871
https://support.microsoft.com/help/5122871
FixedWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.33438:Security Update:https://support.microsoft.com/help/5122871
https://support.microsoft.com/help/5122871

cvss

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

8.8

010

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

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USexploitability 2.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/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-122US

affected products (167)

Products and version ranges known to be affected.

Microsoft 365 Appsall versionscert_bundDEcpe:/a:microsoft:365_apps:-
Microsoft Access 2016all versionscert_bundDEcpe:/a:microsoft:access:2016
Microsoft Excel 2016all versionscert_bundDEcpe:/a:microsoft:excel:2016
Microsoft Office 2016all versionscert_bundDEcpe:/a:microsoft:office:2016
Microsoft Office 2019all versionscert_bundDEcpe:/a:microsoft:office:2019
Microsoft Office 365 for Macall versionscert_bundDEcpe:/a:microsoft:office_365:for_mac
Microsoft Office LTSC 2021all versionscert_bundDEcpe:/a:microsoft:office:ltsc_2021
Microsoft Office LTSC 2024all versionscert_bundDEcpe:/a:microsoft:office:ltsc_2024
Microsoft Office LTSC for Mac 2021all versionscert_bundDEcpe:/a:microsoft:office:ltsc_for_mac_2021
Microsoft Office LTSC for Mac 2024all versionscert_bundDEcpe:/a:microsoft:office:ltsc_for_mac_2024
Microsoft Office Online Serverall versionscert_bundDEcpe:/a:microsoft:office_online_server:-
Microsoft Office for Androidall versionscert_bundDEcpe:/a:microsoft:office:for_android
Microsoft Outlook 2016all versionscert_bundDEcpe:/a:microsoft:outlook:2016
Microsoft PowerPoint 2016all versionscert_bundDEcpe:/a:microsoft:powerpoint:2016
Microsoft SharePoint Server Subscription Editionall versionscert_bundDEcpe:/a:microsoft:sharepoint:server_subscription_edition
Microsoft Skype for Business Server 2015 CU13all versionscert_bundDEcpe:/a:microsoft:skype:for_business_server_2015_cu13
Microsoft Skype for Business Server 2019 CU8all versionscert_bundDEcpe:/a:microsoft:skype:for_business_server_2019_cu8
Microsoft Skype for Business Server Subscription Edition CU1all versionscert_bundDEcpe:/a:microsoft:skype:for_business_server_subscription_edition_cu1
Microsoft Teams for Androidall versionscert_bundDEcpe:/a:microsoft:teams:for_android
Microsoft Windows 10all versionscert_bundDEcpe:/o:microsoft:windows_10:-

showing 20 of 167

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2026-0352Kwetsbaarheden verholpen in Microsoft OfficeNL2026-09-08csaf · ncsc_nlNL
Microsoft heeft 114 kwetsbaarheden verholpen in diverse Office producten.
WID-SEC-W-2026-3234Microsoft Office Produkte: Mehrere SchwachstellenDeutsch2026-09-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen Microsoft Office Produkten, Microsoft Office Online Server, Microsoft 365 Apps, Microsoft SharePoint, Microsoft Teams und Microsoft Skype ausnutzen, um erhöhte Berechtigungen zu erlangen, um Code auszuführen, um Informationen offenzulegen und um den Nutzer zu täuschen.
WID-SEC-W-2026-3243Microsoft Windows: Mehrere SchwachstellenDeutsch2026-09-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows Server, Microsoft Windows 10 und Microsoft Windows 11 ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service herbeizuführen, um Informationen offenzulegen und um beliebigen Code auszuführen.
msrc_CVE-2026-81955Windows Graphics Component Remote Code Execution Vulnerability2026-09-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (1)

Other names and identifiers for this entity.

BDU:2026-15458 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund ncsc_nl msrc_csaf NVD CVE.org MITRE

published 2026-09-08modified 2026-10-21

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81955

scry

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