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 Linux — io_uring: drop any code related to SCM_RIGHTS
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0031 23.5 —
AFFECTED
Product Versions Fixed
Linux 2b188cc1bb857a9d4701ae59aa7768b5124e262e – —
Linux 5.1 – 5.4.273
TIMELINE
Mar 6 Reserved by Linux
May 13 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2023-52656 (Linux). CVSS 7.8 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
io_uring: drop any code related to SCM_RIGHTS
This is dead code after we dropped support for passing io_uring fds
over SCM_RIGHTS, get rid of it.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| March 6, 2024 | Reserved | Reserved by Linux |
| May 13, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2023-52656 (Linux). CVSS 7.8 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 2b188cc1bb857a9d4701ae59aa7768b5124e262e | — |
| Linux | Linux | — | 5.1 | 5.4.273 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-52656 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.