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.
Product reference — Azure Sphere by Microsoft · sector: Operating Systems & Platforms. Cumulative disclosure record for this product across the archive.
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| All-time | YTD | |
|---|---|---|
| CVEs | 10 | 0 |
| KEV entries | 0 | 0 |
| KEV/100 | Med CVSS | Med EPSS | C | H | M | L |
|---|---|---|---|---|---|---|
| 0.0 | 6.0 | .0076 | 1 | 1 | 7 | 1 |
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.
Trend (by first-seen month, full archive): ▅▁▁▁▁▆▃▁█▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
| Month | New CVEs |
|---|---|
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 0 |
| 2026-08 | 0 |
Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2021-27080 | 9.3 | 66.2 | CRITICAL | — | 2021-03-11 |
| CVE-2021-27074 | 6.2 | 60.9 | MEDIUM | — | 2021-03-11 |
| CVE-2021-36956 | 4.4 | 56.3 | MEDIUM | — | 2021-09-15 |
| CVE-2021-26428 | 4.4 | 55.4 | MEDIUM | — | 2021-08-12 |
| CVE-2021-41375 | 4.4 | 53.6 | MEDIUM | — | 2021-11-10 |
| CVE-2021-41376 | 2.3 | 51.4 | LOW | — | 2021-11-10 |
| CVE-2021-26430 | 6.0 | 51.3 | MEDIUM | — | 2021-08-12 |
| CVE-2021-41374 | 6.7 | 46.0 | MEDIUM | — | 2021-11-10 |
| CVE-2021-26429 | 7.7 | 45.9 | HIGH | — | 2021-08-12 |
| CVE-2021-42300 | 6.0 | 43.5 | MEDIUM | — | 2021-11-10 |
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2021-42300 | 6.0 | 43.5 | MEDIUM | — | 2021-11-10 |
| CVE-2021-41375 | 4.4 | 53.6 | MEDIUM | — | 2021-11-10 |
| CVE-2021-41376 | 2.3 | 51.4 | LOW | — | 2021-11-10 |
| CVE-2021-41374 | 6.7 | 46.0 | MEDIUM | — | 2021-11-10 |
| CVE-2021-36956 | 4.4 | 56.3 | MEDIUM | — | 2021-09-15 |
| CVE-2021-26430 | 6.0 | 51.3 | MEDIUM | — | 2021-08-12 |
| CVE-2021-26429 | 7.7 | 45.9 | HIGH | — | 2021-08-12 |
| CVE-2021-26428 | 4.4 | 55.4 | MEDIUM | — | 2021-08-12 |
| CVE-2021-27080 | 9.3 | 66.2 | CRITICAL | — | 2021-03-11 |
| CVE-2021-27074 | 6.2 | 60.9 | MEDIUM | — | 2021-03-11 |
No entries in the CISA KEV catalog.
Vendor: Microsoft — all products and the full vendor record.
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.