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Vendor advisories

Security advisories from the vendors you use.

Search new and updated bulletins from Microsoft, Citrix, Cisco, Palo Alto Networks, Fortinet, Ivanti, Delinea, Ubuntu, and AWS. We keep each vendor's advisory ID, affected products, CVEs, severity, dates, and available fix guidance together.

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11Vendor sources
16,745Advisories collected
6,299Published or updated in 30 days
6,969Marked critical or high
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The original vendor bulletin remains the authority. SecurityAlert gives you one place to find it and compare the details vendors publish in different formats.

16,745 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-2026-97756
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

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

Affected productsMicrosoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-97756
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97755
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft SharePoint Server Subscription Edition, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024
Fixed versions16.0.20326.20190, 16.114.26101123, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes Install KB5002927. Install KB5002928.

CVE-2026-97755
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97753
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

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

Affected productsOffice Online Server, Microsoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions
Fixed versions16.0.10417.20228, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-97753
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97745
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

CVE-2026-97745
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97742
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsOffice Online Server, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024
Fixed versions16.0.10417.20228, 16.114.26101123, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-97742
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97741
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

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

Affected productsMicrosoft 365 Apps for Enterprise for 64-bit Systems, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes

CVE-2026-97741
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-97739
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions
Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-97739
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-88207
CriticalCVSS 7.5

Microsoft Office PowerPoint Remote Code Execution Vulnerability

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

Affected productsMicrosoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

CVE-2026-88207
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-88185
CriticalCVSS 8.1

Microsoft Office Word Remote Code Execution Vulnerability

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

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.114.26101123, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

CVE-2026-88185
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-88178
CriticalCVSS 9.8

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

CVE-2026-88178
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-88156
CriticalCVSS 9.8

Microsoft Office Outlook Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 365 for Mac, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC for Mac 2021
Fixed versions16.114.26101123, https://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

CVE-2026-88156
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-88144
CriticalCVSS 8.8

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.114.26101123, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

CVE-2026-88144
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-70291
CriticalCVSS 9.8

Microsoft Office Outlook Remote Code Execution Vulnerability

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

Affected productsMicrosoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

CVE-2026-70291
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-70269
CriticalCVSS 8.1

Microsoft Office Word Remote Code Execution Vulnerability

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

Affected productsMicrosoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versionshttps://aka.ms/OfficeSecurityReleases, 16.114.26101123, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

CVE-2026-70269
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-70215
CriticalCVSS 8.8

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 365 for Mac, Microsoft 365 Apps for Enterprise for 32-bit Systems, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft Office LTSC for Mac 2021
Fixed versions16.114.26101123, https://aka.ms/OfficeSecurityReleases, 16.0.14334.20974, 16.0.17932.21056
Vendor guidance

Release Notes

CVE-2026-70215
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-105718
CriticalCVSS 8.8

Microsoft Excel Remote Code Execution Vulnerability

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-105718
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-100211
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC 2024 for 64-bit editions
Fixed versions16.114.26101123, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

CVE-2026-100211
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-100210
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

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

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions
Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes Install KB5002928.

CVE-2026-100210
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-100209
CriticalCVSS 8.8

Microsoft Office Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Affected productsMicrosoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions, Microsoft 365 Apps for Enterprise for 64-bit Systems, Microsoft 365 Apps for Enterprise for 32-bit Systems
Fixed versions16.0.17932.21056, https://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes

CVE-2026-100209
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-32157
CriticalCVSS 8.8

Remote Desktop Client Remote Code Execution Vulnerability

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

Affected productsWindows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems, Remote Desktop client for Windows Desktop
Fixed versions10.0.28000.1836, 1.2.7099.0
Vendor guidance

Release Notes Install KB5083768.

CVE-2026-32157
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-109461
HighCVSS 5.9

Microsoft Authentication Library (MSAL) for Node.js Information Disclosure Vulnerability

Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Identity Client for NodeJS, Microsoft Identity Client for NodeJS on Windows 10 Version 22H2 for x64-based Systems
Fixed versions7.1.0
Vendor guidance

Release Notes

CVE-2026-109461
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-108455
HighCVSS 6.5

Microsoft Office PowerPoint Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions
Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes

CVE-2026-108455
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-108454
HighCVSS 6.5

Microsoft Office PowerPoint Information Disclosure Vulnerability

Buffer over-read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft Office 365 for Mac, Microsoft Office LTSC 2021 for 64-bit editions
Fixed versions16.114.26101123, 16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases
Vendor guidance

Release Notes

CVE-2026-108454
Read the vendor advisory Watch this product
Microsoft Security Response CenterCVE-2026-108453
HighCVSS 6.5

Microsoft Office PowerPoint Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

Affected productsMicrosoft Office LTSC 2021 for 64-bit editions, Microsoft Office LTSC 2021 for 32-bit editions, Microsoft Office LTSC 2024 for 64-bit editions, Microsoft Office LTSC 2024 for 32-bit editions
Fixed versions16.0.14334.20974, 16.0.17932.21056, https://aka.ms/OfficeSecurityReleases, 16.114.26101123
Vendor guidance

Release Notes

CVE-2026-108453
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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