boxscore/security
PRODUCT · referenceProducts · latest edition

Reference page — cumulative record through Wednesday, October 7, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

Windows 11 Version 23H2

Product reference — Windows 11 Version 23H2 by Microsoft · sector: Operating Systems & Platforms. Cumulative disclosure record for this product across the archive.

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Product totals

Disclosures & known-exploited
All-timeYTD
CVEs14271157
KEV entries6211
Rate & severity
KEV/100Med CVSSMed EPSSCHML
4.37.8.00403910733132

KEV/100 = KEV entries ÷ CVEs × 100. Med CVSS / Med EPSS are medians over this product's disclosures. C/H/M/L = disclosures by CVSS severity band.

Monthly disclosures

Trend (by first-seen month, full archive): ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁▂▁▁▁▁▁▁▁▁▂▁▁▂▂▂▁▃█▁

Last 12 months (new CVEs by first-seen day)
MonthNew CVEs
2025-111
2025-121
2026-0177
2026-0226
2026-030
2026-04113
2026-0555
2026-0699
2026-0717
2026-08168
2026-09602
2026-100

Notable CVEs

Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.

Notable (ranked)
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2024-214128.199.9HIGHYES2024-02-13
CVE-2023-360258.899.8HIGHYES2023-11-14
CVE-2025-330538.899.7HIGHYES2025-06-10
CVE-2024-381127.599.7HIGHYES2024-07-09
CVE-2024-434516.599.7MEDIUMYES2024-11-12
CVE-2025-330738.899.7HIGHYES2025-06-10
CVE-2024-300887.099.3HIGHYES2024-10-15
CVE-2024-435727.899.3HIGHYES2024-10-08
CVE-2024-213387.899.1HIGHYES2024-03-04
CVE-2025-240546.599.1MEDIUMYES2025-03-11
CVE-2024-434618.899.0HIGHYES2024-09-16
CVE-2024-435736.598.8MEDIUMYES2024-10-08
CVE-2024-299888.898.7HIGHYES2024-04-09
CVE-2013-39005.598.7MEDIUMYES2013-12-11
CVE-2024-381787.598.6HIGHYES2024-08-13

Recent CVEs

Most recently seen
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2026-853607.016.7HIGH—2026-09-08
CVE-2026-840017.566.5HIGH—2026-09-08
CVE-2026-839968.824.4HIGH—2026-09-08
CVE-2026-839757.824.4HIGH—2026-09-08
CVE-2026-839988.855.8HIGH—2026-09-08
CVE-2026-839887.824.4HIGH—2026-09-08
CVE-2026-839915.521.0MEDIUM—2026-09-08
CVE-2026-839867.824.4HIGH—2026-09-08
CVE-2026-839797.824.4HIGH—2026-09-08
CVE-2026-839767.824.4HIGH—2026-09-08
CVE-2026-839747.824.4HIGH—2026-09-08
CVE-2026-839697.824.4HIGH—2026-09-08
CVE-2026-839557.824.4HIGH—2026-09-08
CVE-2026-839427.820.5HIGH—2026-09-08
CVE-2026-813557.89.2HIGH—2026-09-08

KEV entries

CISA Known Exploited Vulnerabilities (newest addition first)
CVEKEV addedCVSSEPSS %ileSeverity
CVE-2026-819632026-09-087.831.3HIGH
CVE-2026-338242026-08-189.875.3CRITICAL
CVE-2026-688202026-08-117.024.2HIGH
CVE-2026-322022026-04-284.391.8MEDIUM
CVE-2023-364242026-04-137.896.1HIGH
CVE-2026-215332026-02-107.890.5HIGH
CVE-2026-215252026-02-106.291.7MEDIUM
CVE-2026-215192026-02-107.883.9HIGH
CVE-2026-215132026-02-108.896.8HIGH
CVE-2026-215102026-02-108.897.8HIGH
CVE-2026-208052026-01-135.594.1MEDIUM
CVE-2025-622212025-12-097.884.2HIGH
CVE-2025-622152025-11-127.093.1HIGH
CVE-2025-330732025-10-208.899.7HIGH
CVE-2025-592302025-10-147.885.2HIGH
CVE-2025-249902025-10-147.893.5HIGH
CVE-2025-330532025-06-108.899.7HIGH
CVE-2025-304002025-05-137.879.0HIGH
CVE-2025-327012025-05-137.871.7HIGH
CVE-2025-327062025-05-137.882.8HIGH
CVE-2025-303972025-05-137.598.0HIGH
CVE-2025-327092025-05-137.881.6HIGH
CVE-2025-240542025-04-176.599.1MEDIUM
CVE-2025-298242025-04-087.896.4HIGH
CVE-2025-249842025-03-114.680.0MEDIUM

Related

Vendor: Microsoft — all products and the full vendor record.

Methodology

A product is a (vendor, product) pair as named in the affected-product data. Rate statistics are arithmetic over published figures. Counts key to first-seen day. Raw counts are not comparable across products; this is a reference page assembled from the public record, not a ranking by our judgment.

Sources. CVE Program (cvelistV5), NVD (NIST), CISA KEV, FIRST EPSS.