Filtered by vendor Microsoft
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Filtered by product Windows 10 21h2
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Total
1769 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2021-43890 | 1 Microsoft | 12 App Installer, Windows 10 1507, Windows 10 1709 and 9 more | 2026-02-24 | 7.1 High |
| We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet/Trickbot/Bazaloader. An attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Please see the Security Updates table for the link to the updated app. Alternatively you can download and install the Installer using the links provided in the FAQ section. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. December 27 2023 Update: In recent months, Microsoft Threat Intelligence has seen an increase in activity from threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme. To address this increase in activity, we have updated the App Installer to disable the ms-appinstaller protocol by default and recommend other potential mitigations. | ||||
| CVE-2026-20846 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7.5 High |
| Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network. | ||||
| CVE-2026-21222 | 1 Microsoft | 25 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 22 more | 2026-02-23 | 5.5 Medium |
| Insertion of sensitive information into log file in Windows Kernel allows an authorized attacker to disclose information locally. | ||||
| CVE-2026-21231 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7.8 High |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Kernel allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21237 | 1 Microsoft | 19 Windows 10 21h2, Windows 10 21h2, Windows 10 22h2 and 16 more | 2026-02-23 | 7 High |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21238 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7.8 High |
| Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21239 | 1 Microsoft | 28 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 25 more | 2026-02-23 | 7.8 High |
| Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21240 | 1 Microsoft | 22 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 19 more | 2026-02-23 | 7.8 High |
| Time-of-check time-of-use (toctou) race condition in Windows HTTP.sys allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21244 | 1 Microsoft | 25 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 22 more | 2026-02-23 | 7.3 High |
| Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. | ||||
| CVE-2026-21249 | 1 Microsoft | 29 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 26 more | 2026-02-23 | 3.3 Low |
| External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing locally. | ||||
| CVE-2026-21253 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7 High |
| Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21255 | 1 Microsoft | 25 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 22 more | 2026-02-23 | 8.8 High |
| Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally. | ||||
| CVE-2026-21508 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7 High |
| Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21525 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 6.2 Medium |
| Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally. | ||||
| CVE-2026-21510 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 8.8 High |
| Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network. | ||||
| CVE-2026-21513 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 8.8 High |
| Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network. | ||||
| CVE-2026-21533 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7.8 High |
| Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21236 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-02-23 | 7.8 High |
| Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21234 | 1 Microsoft | 22 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 19 more | 2026-02-23 | 7 High |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-21235 | 1 Microsoft | 21 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 18 more | 2026-02-23 | 7.3 High |
| Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally. | ||||