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-2026-47646Critical· 9.3Dynamics 365 Customer Voice Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Dynamics 365 Customer Voice allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58525High· 8.2Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-57988High· 7.1Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Relative path traversal in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-57987Medium· 6.5Microsoft Edge (Chromium-based) Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-57986High· 7.5Microsoft 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-2026-57985High· 7.6Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Improper input validation in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-57984High· 7.5Microsoft 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-2026-57981High· 8.8Microsoft 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-2026-58278Medium· 5.4Microsoft Edge (Chromium-based) Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58276High· 7.5Microsoft 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-2026-57992High· 7.5Microsoft 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-2026-57991High· 7.4Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
CVE-2026-57983High· 8.7Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
CVE-2026-57977High· 7.1Microsoft Edge (Chromium-based) Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58296High· 7.1Microsoft Edge for Android Information Disclosure Vulnerability
Exposure of private personal information to an unauthorized actor in Microsoft Edge for Android allows an unauthorized attacker to disclose information over a network.
CVE-2026-58290High· 7.5Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-58289Critical· 9.0PoCMicrosoft Edge (Chromium-based) Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-58288High· 8.3Microsoft 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-2026-58287High· 8.3Microsoft 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-2026-58286High· 8.1Microsoft Edge (Chromium-based) Spoofing Vulnerability
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58285High· 8.3Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-58284High· 8.3Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVE-2026-58283High· 8.1Microsoft Edge (Chromium-based) Spoofing Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58282High· 8.1Microsoft Edge (Chromium-based) Spoofing Vulnerability
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-57993High· 7.4Microsoft Edge (Chromium-based) Spoofing Vulnerability
Server-side request forgery (ssrf) in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58522Medium· 6.8Microsoft Edge for Android Information Disclosure Vulnerability
Relative path traversal in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
CVE-2026-58300Medium· 6.2Microsoft Edge for Android Information Disclosure Vulnerability
Absolute path traversal in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
CVE-2026-58299High· 7.5Microsoft Edge for Android Remote Code Execution Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Edge for Android allows an unauthorized attacker to execute code over a network.
CVE-2026-58298High· 7.2Microsoft Edge (Chromium-based) Spoofing Vulnerability
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-58297High· 7.1Microsoft Edge for Android Information Disclosure Vulnerability
Exposure of private personal information to an unauthorized actor in Microsoft Edge for Android allows an unauthorized attacker to disclose information over a network.