Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Red Hat OpenShift Container Platform 4.21
Product reference — Red Hat OpenShift Container Platform 4.21 by Red Hat · sector: Operating Systems & Platforms. Cumulative disclosure record for this product across the archive.
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Product totals
| All-time | YTD | |
|---|---|---|
| CVEs | 24 | 24 |
| KEV entries | 0 | 0 |
| KEV/100 | Med CVSS | Med EPSS | C | H | M | L |
|---|---|---|---|---|---|---|
| 0.0 | 7.5 | .0053 | 4 | 17 | 3 | 0 |
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): █▃█▅▇▃
| Month | New CVEs |
|---|---|
| 2026-05 | 6 |
| 2026-06 | 2 |
| 2026-07 | 6 |
| 2026-08 | 3 |
| 2026-09 | 5 |
| 2026-10 | 2 |
Notable CVEs
Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-4408 | 9.8 | 77.1 | CRITICAL | — | 2026-05-28 |
| CVE-2026-42009 | 7.5 | 65.3 | HIGH | — | 2026-05-18 |
| CVE-2026-42010 | 9.8 | 59.8 | CRITICAL | — | 2026-05-07 |
| CVE-2026-16242 | 9.4 | 59.0 | CRITICAL | — | 2026-07-20 |
| CVE-2026-1933 | 6.5 | 57.3 | MEDIUM | — | 2026-05-27 |
| CVE-2026-14474 | 8.8 | 56.0 | HIGH | — | 2026-07-07 |
| CVE-2026-75885 | 9.3 | 55.1 | CRITICAL | — | 2026-09-18 |
| CVE-2026-49329 | 7.5 | 54.9 | HIGH | — | 2026-09-01 |
| CVE-2026-14164 | 7.5 | 53.0 | HIGH | — | 2026-06-30 |
| CVE-2026-14476 | 8.0 | 50.4 | HIGH | — | 2026-07-07 |
| CVE-2026-46579 | 7.5 | 48.2 | HIGH | — | 2026-05-29 |
| CVE-2026-49332 | 8.5 | 43.1 | HIGH | — | 2026-07-28 |
| CVE-2026-42965 | 6.5 | 43.0 | MEDIUM | — | 2026-05-29 |
| CVE-2026-75887 | 7.5 | 40.6 | HIGH | — | 2026-09-23 |
| CVE-2026-50237 | 7.4 | 38.9 | HIGH | — | 2026-08-11 |
Recent CVEs
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-96577 | 7.1 | 9.6 | HIGH | — | 2026-10-01 |
| CVE-2026-83589 | 6.1 | 13.9 | MEDIUM | — | 2026-10-01 |
| CVE-2026-87114 | 7.1 | 9.3 | HIGH | — | 2026-09-28 |
| CVE-2026-75887 | 7.5 | 40.6 | HIGH | — | 2026-09-23 |
| CVE-2026-75886 | 7.2 | 24.2 | HIGH | — | 2026-09-23 |
| CVE-2026-75885 | 9.3 | 55.1 | CRITICAL | — | 2026-09-18 |
| CVE-2026-49329 | 7.5 | 54.9 | HIGH | — | 2026-09-01 |
| CVE-2026-50237 | 7.4 | 38.9 | HIGH | — | 2026-08-11 |
| CVE-2026-50236 | 7.4 | 38.8 | HIGH | — | 2026-08-11 |
| CVE-2026-15816 | 7.5 | 28.9 | HIGH | — | 2026-08-07 |
| CVE-2026-16313 | 7.6 | 26.3 | HIGH | — | 2026-07-28 |
| CVE-2026-49332 | 8.5 | 43.1 | HIGH | — | 2026-07-28 |
| CVE-2026-16242 | 9.4 | 59.0 | CRITICAL | — | 2026-07-20 |
| CVE-2026-15809 | 7.8 | 7.2 | HIGH | — | 2026-07-15 |
| CVE-2026-14474 | 8.8 | 56.0 | HIGH | — | 2026-07-07 |
KEV entries
No entries in the CISA KEV catalog.
Related
Vendor: Red Hat — 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.
