Microsoft has 4,599 CVEs on record between 2012 and 2026. Disclosure cadence is accelerating: 2930 in the last 90 days against 932 in the 90 before. The busiest recent month was October 2026 with 1482. The median CVSS is 7.8 (high), with 273 rated critical. 2% have been exploited in the wild, in line with the corpus average. The median gap from publication to a KEV listing is 112 days (95 cases). The dominant weakness classes are CWE-122 (931) and CWE-416 (851). Most affected products: windows_10_1607 (988), Windows 10 Version 1607 (877), 365_apps (267).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 2% vs 1% corpus
- Median CVSS
- 7.8
- Publish → KEV
- 112 d median(95)
- Last 90 days
- 2930 prev 932
Weakness classes
Products
- windows_10_1607 988
- Windows 10 Version 1607 877
- 365_apps 267
- Microsoft 365 Apps for Enterprise 232
- Windows 10 Version 1809 199
- windows_10_1809 174
Worst active — by depth score
CVE-2025-53770Critical· 9.8Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing…100CVE-2021-38647Critical· 9.8Open Management Infrastructure (OMI) Remote Code Execution Vulnerability100CVE-2021-34473Critical· 9.1Microsoft Exchange Server Remote Code Execution Vulnerability100CVE-2021-26855Critical· 9.1Microsoft Exchange Server Remote Code Execution Vulnerability100CVE-2020-0796Critical· 10.0A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.100
Microsoft vulnerabilities
CVEs affecting Microsoft, newest first. Open any entry for full detail, references, and exploit status.
4599 CVEsRSS
CVE-2026-66798Medium· 4.3⚖ disputedMicrosoft Edge (Chromium-based) Remote Code Execution Vulnerability
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-62904Medium· 5.4Incorrect authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
Incorrect authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
CVE-2026-58616Medium· 4.4Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Copilot Chat (Microsoft Edge) allows an authorized attacker to disclose information over a network.
CVE-2026-70331Medium· 5.4Microsoft Edge for iOS Spoofing Vulnerability
Improper neutralization of input used for llm prompting in Microsoft Edge for iOS allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-70309Medium· 5.4Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-72984High· 8.8Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-66323Medium· 5.4Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-62316High· 8.8PoCMicrosoft UFO open-source framework for intelligent automation across devices and platforms
Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, ufo/client/mcp/http_servers/linux_mcp_server.py binds a FastMCP streamable HTTP server to localhost:8010 but does not validate t…
CVE-2026-69502Critical· 10.0Server-side request forgery (ssrf) in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
Server-side request forgery (ssrf) in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-69851Critical· 9.9Microsoft Entra ID Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Azure Active Directory allows an authorized attacker to elevate privileges over a network.
CVE-2026-69836Critical· 10.0PoCMicrosoft Entra ID Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Entra ID allows an unauthorized attacker to execute code over a network.
CVE-2026-69519High· 8.6Azure Stack HCI Information Disclosure Vulnerability
Observable response discrepancy in Azure Stack HCI allows an unauthorized attacker to disclose information over a network.
CVE-2026-70105Medium· 6.5Microsoft Word Information Disclosure Vulnerability
Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
CVE-2026-69555Critical· 10.0Azure Arc Elevation of Privilege Vulnerability
Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-69558High· 8.6Microsoft Partner Center Information Disclosure Vulnerability
Authorization bypass through user-controlled key in Microsoft Partner Center allows an unauthorized attacker to disclose information over a network.
CVE-2026-69543High· 8.5Azure Virtual Machines Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Azure Virtual Machines allows an authorized attacker to elevate privileges over a network.
CVE-2026-69855High· 7.7Server-side request forgery (ssrf) in Microsoft Copilot in Azure allows an authorized attacker to disclose information over a network.
Server-side request forgery (ssrf) in Microsoft Copilot in Azure allows an authorized attacker to disclose information over a network.
CVE-2026-68789Critical· 9.9Azure SQL Database Elevation of Privilege Vulnerability
Improper neutralization of special elements used in an sql command ('sql injection') in Azure SQL Database allows an authorized attacker to elevate privileges over a network.
CVE-2026-65801Critical· 10.0Microsoft Exchange Online Elevation of Privilege Vulnerability
Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62834Critical· 9.3Azure Data Factory Elevation of Privilege Vulnerability
Improper verification of cryptographic signature in Azure Data Factory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-55015Medium· 5.5Microsoft Remote Help Denial of Service Vulnerability
Uncontrolled search path element in Windows Remote Help allows an authorized attacker to deny service locally.
CVE-2026-55013High· 7.1Windows Remote Help Defense Spoofing Vulnerability
Uncontrolled search path element in Windows Remote Help Defense allows an authorized attacker to perform spoofing locally.
CVE-2026-68782Critical· 9.9Azure SQL Database Elevation of Privilege Vulnerability
Improper neutralization of special elements used in an sql command ('sql injection') in Azure SQL Database allows an authorized attacker to elevate privileges over a network.
CVE-2026-66800High· 8.6Azure Data Factory Information Disclosure Vulnerability
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.
CVE-2026-65816Critical· 10.0Azure Arc Elevation of Privilege Vulnerability
Use of incorrectly-resolved name or reference in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-65770Critical· 10.0Azure Managed Instance for Apache Cassandra Remote Code Execution Vulnerability
Improper neutralization of argument delimiters in a command ('argument injection') in Azure Managed Instance for Apache Cassandra allows an unauthorized attacker to execute code over a network.
CVE-2026-63509Critical· 9.9Microsoft Fabric Elevation of Privilege Vulnerability
Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.
CVE-2026-69419High· 8.5Azure Data Manager for Energy Remote Code Execution Vulnerability
Integer overflow or wraparound in Azure Data Manager for Energy allows an authorized attacker to execute code over a network.
CVE-2026-69400Critical· 9.6Azure Logic Apps Elevation of Privilege Vulnerability
Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Logic Apps allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-66309Critical· 9.1Azure SQL Database Elevation of Privilege Vulnerability
Improper access control in Azure SQL Database allows an authorized attacker to elevate privileges over a network.