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Microsoft

91,472 known vulnerabilities

1,058
CRITICAL
11,903
HIGH
5,674
MEDIUM
354
LOW

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windows 8173 windows server 2016 5644 windows server 2019 5279 windows server 2012 4134 windows 10 3588 windows server 2022 3387 windows server 2008 3078 windows 10 1809 2579 windows 10 21h2 2553 windows 10 22h2 2550
18,990 CVEs · Page 15/380
5.5
CVE-2026-56184

Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose i

7.0
CVE-2026-56183

Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-56182

Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.

8.3
CVE-2026-56181

Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing

5.5
CVE-2026-56178

Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to el

7.8
CVE-2026-56176

Out-of-bounds read in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-56175

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-56173

Use after free in Windows WebView allows an authorized attacker to elevate privileges locally.

6.5
CVE-2026-56168

Null pointer dereference in Windows SMB Server allows an authorized attacker to deny service over a network.

9.8
CVE-2026-56159

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

5.4
CVE-2026-56157

Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

7.8
CVE-2026-56156

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

7.8
CVE-2026-55949

Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55947

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

9.8
CVE-2026-55944

Deserialization of untrusted data in Microsoft Dynamics NAV allows an unauthorized attacker to execute code over a netwo

6.1
CVE-2026-55898

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

6.3
CVE-2026-55145

Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authori

5.5
CVE-2026-55142

Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

7.8
CVE-2026-55141

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

7.8
CVE-2026-55140

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

5.5
CVE-2026-55139

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

5.5
CVE-2026-55138

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

7.8
CVE-2026-55137

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

7.8
CVE-2026-55136

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

4.6
CVE-2026-55135

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allo

7.8
CVE-2026-55134

Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55133

Heap-based buffer overflow in Microsoft Office OneNote allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55132

Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55131

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

7.8
CVE-2026-55130

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

7.8
CVE-2026-55129

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55128

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55127

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

7.3
CVE-2026-55126

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allo

7.8
CVE-2026-55125

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

5.5
CVE-2026-55124

Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose info

7.8
CVE-2026-55123

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

7.1
CVE-2026-55122

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

5.5
CVE-2026-55121

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

7.8
CVE-2026-55120

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

7.8
CVE-2026-55058

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

5.5
CVE-2026-55057

Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.

7.8
CVE-2026-55056

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-55055

Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

6.5
CVE-2026-55054

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

7.8
CVE-2026-55053

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

8.8
CVE-2026-55052

Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

6.5
CVE-2026-55051

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information

5.5
CVE-2026-55050

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

7.8
CVE-2026-55049

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

Frequently Asked Questions

How many CVEs affect Microsoft?

Microsoft has 91,472 CVE records in our database, including 2628 critical and 63090 high severity vulnerabilities. 351 of these are listed in CISA's Known Exploited Vulnerabilities catalog.

What are the most severe Microsoft vulnerabilities?

Microsoft has 2628 critical severity (CVSS 9.0+) and 63090 high severity (CVSS 7.0-8.9) vulnerabilities. 351 vulnerabilities are confirmed as actively exploited in the wild.

How can I scan for Microsoft vulnerabilities?

CyberStrike's AI-powered security agents automatically detect vulnerabilities in Microsoft products across your infrastructure. The platform provides continuous pentesting, DAST scanning, and real-time vulnerability monitoring with actionable remediation guidance.

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