Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2023-0590
n/a Kernel — A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem.
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0023 12.5 —
AFFECTED
Product Versions Fixed
Kernel Linux kernel 6.1-rc2 – —
TIMELINE
Jan 31 Reserved by redhat
Mar 23 Published (CNA: redhat)
Oct 14 ENRICHED — CVE-2023-0590 (Kernel). Received CVSS 4.7 and CPE data from NVD.
Description
A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ("net: sched: fix race condition in qdisc_graft()") not applied yet, then kernel could be affected.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| January 31, 2023 | Reserved | Reserved by redhat |
| March 23, 2023 | Published | Published (CNA: redhat) |
| October 14, 2026 | ENRICHED | ENRICHED — CVE-2023-0590 (Kernel). Received CVSS 4.7 and CPE data from NVD. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| n/a | Kernel | — | Linux kernel 6.1-rc2 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-0590 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 Monday, October 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.
