What is CVE-2023-46862?

CVE-2023-46862 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2023-10-29.

How severe is CVE-2023-46862?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2023-46862 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Linux Kernel

CVE-2023-46862

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.

Published 2023-10-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (12.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

References

github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46 (Patch)
bugzilla.kernel.org/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
lists.debian.org/debian-lts-announce/2024/01/msg00005.html (mailing-list)

Frequently asked questions

What is CVE-2023-46862?: CVE-2023-46862 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2023-10-29.
How severe is CVE-2023-46862?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2023-46862 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.