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-2023-1838
n/a Kernel — A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to…
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H N H 7.1 .0025 15.3 —
AFFECTED
Product Versions Fixed
Kernel Linux Kernel prior to kernel 5.18 25 – —
TIMELINE
Apr 4 Reserved by redhat
Apr 5 Published (CNA: redhat)
Oct 8 ENRICHED — CVE-2023-1838 (Kernel). Received CVSS 7.1 and CPE data from NVD.
Description
A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| April 4, 2023 | Reserved | Reserved by redhat |
| April 5, 2023 | Published | Published (CNA: redhat) |
| October 8, 2026 | ENRICHED | ENRICHED — CVE-2023-1838 (Kernel). Received CVSS 7.1 and CPE data from NVD. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| n/a | Kernel | — | Linux Kernel prior to kernel 5.18 25 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-1838 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.
