boxscore/security
PRODUCT · referenceProducts · latest edition

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.

Windows Server Version 20H2

Product reference — Windows Server Version 20H2 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
CVEs2100
KEV entries160
Rate & severity
KEV/100Med CVSSMed EPSSCHML
7.67.8.013610153470

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
2025-090
2025-100
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-070
2026-080

Notable CVEs

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

Notable (ranked)
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2021-345278.8100.0HIGHYES2021-11-03
CVE-2022-301907.899.9HIGHYES2022-06-14
CVE-2021-404448.899.9HIGHYES2021-11-03
CVE-2021-16757.899.7HIGHYES2021-11-03
CVE-2021-17327.899.5HIGHYES2021-11-03
CVE-2021-422877.599.4HIGHYES2022-04-11
CVE-2021-422787.599.3HIGHYES2022-04-11
CVE-2021-369427.599.2HIGHYES2021-11-03
CVE-2022-218827.898.9HIGHYES2022-02-04
CVE-2021-369487.897.9HIGHYES2021-11-03
CVE-2021-344847.897.4HIGHYES2022-03-31
CVE-2021-413795.597.2MEDIUMYES2022-03-03
CVE-2021-337717.895.3HIGHYES2021-11-03
CVE-2021-344867.894.9HIGHYES2022-03-28
CVE-2021-319797.890.8HIGHYES2021-11-03

Recent CVEs

Most recently seen
CVECVSSEPSS %ileSeverityKEVFirst seen
CVE-2022-301907.899.9HIGHYES2022-06-14
CVE-2021-422877.599.4HIGHYES2022-04-11
CVE-2021-422787.599.3HIGHYES2022-04-11
CVE-2021-344847.897.4HIGHYES2022-03-31
CVE-2021-344867.894.9HIGHYES2022-03-28
CVE-2021-413795.597.2MEDIUMYES2022-03-03
CVE-2022-218827.898.9HIGHYES2022-02-04
CVE-2021-422917.587.6HIGH—2021-11-10
CVE-2021-422885.744.9MEDIUM—2021-11-10
CVE-2021-422857.840.5HIGH—2021-11-10
CVE-2021-422838.836.0HIGH—2021-11-10
CVE-2021-422827.587.6HIGH—2021-11-10
CVE-2021-422867.836.0HIGH—2021-11-10
CVE-2021-422846.887.8MEDIUM—2021-11-10
CVE-2021-422805.556.2MEDIUM—2021-11-10

KEV entries

CISA Known Exploited Vulnerabilities (newest addition first)
CVEKEV addedCVSSEPSS %ileSeverity
CVE-2022-301902022-06-147.899.9HIGH
CVE-2021-422872022-04-117.599.4HIGH
CVE-2021-422782022-04-117.599.3HIGH
CVE-2021-344842022-03-317.897.4HIGH
CVE-2021-344862022-03-287.894.9HIGH
CVE-2021-413792022-03-035.597.2MEDIUM
CVE-2022-218822022-02-047.898.9HIGH
CVE-2021-17322021-11-037.899.5HIGH
CVE-2021-16752021-11-037.899.7HIGH
CVE-2021-404442021-11-038.899.9HIGH
CVE-2021-369552021-11-037.889.8HIGH
CVE-2021-369482021-11-037.897.9HIGH
CVE-2021-369422021-11-037.599.2HIGH
CVE-2021-345272021-11-038.8100.0HIGH
CVE-2021-337712021-11-037.895.3HIGH
CVE-2021-319792021-11-037.890.8HIGH

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.