High severity7.8NVD Advisory· Published Jul 14, 2021· Updated Aug 10, 2026
CVE-2021-34516
CVE-2021-34516
Description
Win32k Elevation of Privilege Vulnerability
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
32cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.19003:*:*:*:*:*:x86:*range: 10.0.0
- cpe:2.3:o:microsoft:windows_10_1909:10.0.18363.1679:*:*:*:*:*:x86:*range: 10.0.0
cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4530:*:*:*:*:*:x86:*+ 1 more
- cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.4530:*:*:*:*:*:x86:*range: 10.0.0
- cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.1110:*:*:*:*:*:x86:*range: 10.0.0
cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2061:*:*:*:*:*:x86:*+ 1 more
- cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.2061:*:*:*:*:*:x86:*range: 10.0.0
- cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.1110:*:*:*:*:*:x64:*range: 10.0.0
- cpe:2.3:o:microsoft:windows_10_21H1:10.0.19043.1110:*:*:*:*:*:x64:*Range: 10.0.0
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_8.1:6.3.9600.20069:*:*:*:*:*:x86:*range: 6.3.0
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:6.2.9200.23409:*:*:*:*:*:x64:*range: 6.2.0
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.4530:*:*:*:*:*:*:*range: 10.0.0
- cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.2061:*:*:*:*:*:*:*range: 10.0.0
Patches
Vulnerability mechanics
References
22- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34516nvdPatchVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-21-1004/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1005/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1006/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1007/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1008/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1009/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1010/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1011/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1012/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1013/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1014/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1015/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1016/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1017/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1018/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1019/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1020/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1021/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-1022/nvdThird Party AdvisoryVDB Entry
- www.zerodayinitiative.com/advisories/ZDI-21-895/nvdThird Party AdvisoryVDB Entry
- msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34516nvd
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