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Vendor advisories

Microsoft Security Response Center

Browse 15,859 advisories from this official source. Search by product, CVE, severity, or advisory ID.

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15,859 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-2026-96913
CriticalCVSS 8.8

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel 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 KB5126651. Install KB5126657. Install KB5126655. Install KB5126653. Install KB5127646.

CVE-2026-96913
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-83839
HighCVSS 7.0

Windows Hyper-V Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Hyper-V 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, 10.0.20348.5761, 10.0.19044.7807, 10.0.19045.7807
Vendor guidance

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

CVE-2026-83839
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-83782
HighCVSS 9.8

Windows Shell Remote Code Execution Vulnerability

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

Affected productsWindows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Fixed versions10.0.26300.9711, 10.0.17763.9376, 10.0.20348.5761, 10.0.19044.7807
Vendor guidance

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

CVE-2026-83782
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-70074
HighCVSS 5.5

Windows DNS Information Disclosure Vulnerability

Out-of-bounds read in Windows DNS allows an authorized attacker to disclose information 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, 10.0.20348.5761, 10.0.26100.33650, 10.0.14393.9612
Vendor guidance

Install KB5126651. Install KB5126655. Install KB5126646. Install KB5126868. Install KB5126835. Install KB5126836.

CVE-2026-70074
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-62913
HighCVSS 8.8

Microsoft Exchange Server Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.

Affected productsMicrosoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2019 Cumulative Update 15, Microsoft Exchange Server 2019 Cumulative Update 14
Fixed versions15.01.2507.072, 15.02.2562.046, 15.02.1748.049, 15.02.1544.044
Vendor guidance

Install KB5121576. Install KB5121573. Install KB5121574. Install KB5121575.

CVE-2026-62913
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-38556
HighCVSS 8.0

HID: core: Harden s32ton() against conversion to 0 bits

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productsazl3 kernel 6.6.96.2-1 on Azure Linux 3.0, azl3 kernel 6.6.112.1-2 on Azure Linux 3.0, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, azl3 kernel 6.6.117.1-1 on Azure Linux 3.0
Vendor guidance

Release Notes

CVE-2025-38556
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-13226
HighCVSS 8.8

Type Confusion in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Mariner

Affected productscbl2 nodejs18 18.20.3-9 on CBL Mariner 2.0, azl3 nodejs 20.14.0-9 on Azure Linux 3.0, azl3 nodejs 20.14.0-10 on Azure Linux 3.0, cbl2 nodejs18 18.20.3-12 on CBL Mariner 2.0
Fixed versions24.14.1-3
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-13226
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2025-13230
HighCVSS 8.6

Type Confusion in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Mariner

Affected productscbl2 nodejs18 18.20.3-9 on CBL Mariner 2.0, azl3 nodejs 20.14.0-9 on Azure Linux 3.0, cbl2 nodejs18 18.20.3-10 on CBL Mariner 2.0, azl3 nodejs 20.14.0-10 on Azure Linux 3.0
Fixed versions24.14.1-3
Vendor guidance

CBL-Mariner Releases Release Notes

CVE-2025-13230
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2024-57843
MediumCVSS 5.5

virtio-net: fix overflow inside virtnet_rq_alloc

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the mos...

Affected productscbl2 kernel 5.15.200.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0, cbl2 kernel 5.15.202.1-1, cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0
Vendor guidance

Release Notes

CVE-2024-57843
Read the vendor advisory Watch this product
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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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