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.
CVSS EPSS %ile KEV — .9928 99.9 YES
AFFECTED Product Versions Fixed Multiple Firewalls unspecified —
TIMELINE May 31 Added to CISA KEV, remediation due 2023-06-21 May 31 Published
| Date | Event | Detail |
|---|---|---|
| May 31, 2023 | KEV ADDED | Added to CISA KEV, remediation due 2023-06-21 |
| May 31, 2023 | Published | Published |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Zyxel | Multiple Firewalls | — | — | — |
No references recorded.
Authoritative record: CVE-2023-28771 at cve.org
Vendors: zyxel
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-28771 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.