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Vendor advisories

Microsoft Security Response Center

Browse 15,888 advisories from this official source. Search by product, CVE, severity, or advisory ID.

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All vendor sources Official source

15,888 advisories

Each date says whether the vendor published or updated the bulletin. A vendor bulletin describes products that may be affected. It does not prove that the vulnerable product or version is installed in your environment.

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Microsoft Security Response CenterCVE-2026-97825
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016, Windows Server 2016 (Server Core installation)
Fixed versions10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97825
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97824
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97824
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Microsoft Security Response CenterCVE-2026-97823
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97823
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Microsoft Security Response CenterCVE-2026-97822
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97822
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Microsoft Security Response CenterCVE-2026-97821
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97821
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Microsoft Security Response CenterCVE-2026-97820
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97820
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97819
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97819
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97817
HighCVSS 6.5

Role: DNS Server Information Disclosure Vulnerability

Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97817
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97816
HighCVSS 9.8

Microsoft OpenSSH for Windows Remote Code Execution Vulnerability

Use after free in OpenSSH for Windows allows an unauthorized attacker to execute code over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97816
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97815
HighCVSS 9.8

Windows Error Reporting Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97815
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97813
HighCVSS 6.5

Windows Hyper-V Information Disclosure Vulnerability

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information over a network.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97813
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97812
HighCVSS 7.0

Windows Update Orchestrator Service Elevation of Privilege Vulnerability

Double free in Windows Update Orchestrator Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 22H2 for 32-bit Systems
Fixed versions10.0.19044.7807, 10.0.19045.7807, 10.0.22631.7652, 10.0.26100.9711
Vendor guidance

Install KB5126657. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97812
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97811
HighCVSS 7.8

Microsoft OpenSSH for Windows Elevation of Privilege Vulnerability

Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019, Windows Server 2019 (Server Core installation)
Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.20348.5761
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97811
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97810
HighCVSS 7.0

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.26100.33650
Vendor guidance

Install KB5127648. Install KB5126646. Install KB5126655. Install KB5127646.

CVE-2026-97810
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97809
HighCVSS 7.8

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 23H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems
Fixed versions10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711, 10.0.17763.9376
Vendor guidance

Install KB5126653. Install KB5127648. Install KB5126651. Install KB5126657. Install KB5127646.

CVE-2026-97809
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97808
HighCVSS 7.0

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems
Fixed versions10.0.19045.7807, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711
Vendor guidance

Install KB5126657. Install KB5126653. Install KB5127648. Install KB5126651. Install KB5127646.

CVE-2026-97808
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97807
HighCVSS 7.8

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.22631.7652
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5127646.

CVE-2026-97807
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97806
HighCVSS 7.8

Windows Broadcast DVR User Service Elevation of Privilege Vulnerability

Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems
Fixed versions10.0.17763.9376, 10.0.19044.7807, 10.0.19045.7807, 10.0.22631.7652
Vendor guidance

Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127648. Install KB5127646.

CVE-2026-97806
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97805
HighCVSS 9.8

Windows Partition Management Driver Remote Code Execution Vulnerability

Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network.

Affected productsWindows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Fixed versions6.2.9200.26434, 6.3.9600.23470, 10.0.14393.9612, 10.0.17763.9376
Vendor guidance

Install KB5126835. Install KB5126836. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97805
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97804
HighCVSS 7.8

HID Class Driver Elevation of Privilege Vulnerability

Heap-based buffer overflow in HID class driver allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems
Fixed versions10.0.26300.9711, 10.0.14393.9612, 10.0.17763.9376, 10.0.19044.7807
Vendor guidance

Install KB5127648. Install KB5126868. Install KB5126651. Install KB5126657. Install KB5126653. Install KB5127646. Install KB5126655. Install KB5126646.

CVE-2026-97804
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97801
HighCVSS 7.5

.NET Framework Tampering Vulnerability

Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.

Affected productsMicrosoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 21H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 version 22H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 24H2, Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 25H2
Fixed versions2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0, 4.8.9363.0, 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.10008.0, 2.0.50727.9188 AND 3.0.30729.9171
Vendor guidance

Install KB5127689. Install KB5127690. Install KB5127691. Install KB5127692. Install KB5127693. Install KB5127694. Install KB5127696. Install KB5127660. Install KB5127664. Install KB5126868. Install KB5127666. Install ...

CVE-2026-97801
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97799
HighCVSS 7.8

Windows Audio Service Elevation of Privilege Vulnerability

Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.

Affected productsWindows 11 Version 24H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems
Fixed versions10.0.26100.9711, 10.0.26200.9711, 10.0.26300.9711, 10.0.28000.3231
Vendor guidance

Install KB5127648. Install KB5127646.

CVE-2026-97799
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97794
HighCVSS 7.8

Windows Container Isolation FS Filter Driver (unionfs.sys) Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

Affected productsWindows Server 2022, Windows Server 2022 (Server Core installation), Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems
Fixed versions10.0.20348.5761, 10.0.22631.7652, 10.0.26100.9711, 10.0.26200.9711
Vendor guidance

Install KB5126655. Install KB5126653. Install KB5127648. Install KB5126646. Install KB5127646.

CVE-2026-97794
Read the vendor advisory Watch this product
Before you act

Start with the vendor's bulletin.

We normalize the fields that vendors publish so you can search and compare advisories in one place. We do not replace the original bulletin or turn a product-name match into proof that a system is vulnerable.

Confirm the installed product and version, read the linked vendor guidance, and test the recommended update or mitigation through your normal change process.

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