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.
Linux Kernel
CVSS EPSS %ile KEV
— .7868 99.6 YES
AFFECTED
Product Versions Fixed
Kernel unspecified —
TIMELINE
Oct 6 Added to CISA KEV, remediation due 2025-10-27
Oct 6 Published
Lifecycle
Complete event history — 2 events, chronological
| Date | Event | Detail |
| October 6, 2025 | KEV ADDED | Added to CISA KEV, remediation due 2025-10-27 |
| October 6, 2025 | Published | Published |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Kernel | — | — | — |
References
No references recorded.
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-22555 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.