Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Microsoft Windows 10 Version 1507 — Windows User Profile Service Elevation of Privilege Vulnerability
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .2166 97.4 YES
AFFECTED
Product Versions Fixed
Windows 10 Version 1507 10.0.10240.0 – —
Windows 10 Version 1607 10.0.14393.0 – —
Windows 10 Version 1809 10.0.17763.0 – —
Windows 10 Version 1809 10.0.0 – —
Windows 10 Version 1909 10.0.0 – —
Windows 10 Version 2004 10.0.0 – —
Windows 10 Version 20H2 10.0.0 – —
Windows 10 Version 21H1 10.0.0 – —
Windows 7 6.1.0 – —
Windows 7 Service Pack 1 6.1.0 – —
+ 15 more
TIMELINE
Jun 9 Reserved by microsoft
Mar 31 Added to CISA KEV, remediation due 2022-04-21
Mar 31 Published (CNA: microsoft)
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-34484 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.