CVE-2023-21688
High
Published: 14 February 2023
Published
14 February 2023
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0169
82.6th percentile
Risk Priority
17
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2023-21688 is a high-severity Use After Free (CWE-416) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 17.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-25855
Vulnerability details
NT OS Kernel Elevation of Privilege Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
microsoft
windows 10 1507
≤ 10.0.10240.19747 · ≤ 10.0.10240.19747
microsoft
windows 10 1607
≤ 10.0.14393.5717 · ≤ 10.0.14393.5717
microsoft
windows 10 1809
≤ 10.0.17763.4010 · ≤ 10.0.17763.4010 · ≤ 10.0.17763.4010
microsoft
windows 10 20h2
≤ 10.0.19042.2604 · ≤ 10.0.19042.2604 · ≤ 10.0.19042.2604
microsoft
windows 10 21h2
≤ 10.0.19044.2604 · ≤ 10.0.19044.2604 · ≤ 10.0.19044.2604
microsoft
windows 10 22h2
≤ 10.0.19045.2604 · ≤ 10.0.19045.2604 · ≤ 10.0.19045.2604
microsoft
windows 11 21h2
≤ 10.0.22000.1574 · ≤ 10.0.22000.1574
microsoft
windows 11 22h2
≤ 10.0.22621.1265 · ≤ 10.0.22621.1265
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
+3 more product configuration(s) — see NVD for full list
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
addresses: CWE-416
Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.