What is CVE-2022-47022?

CVE-2022-47022 is a medium-severity vulnerability in Open-Mpi Hwloc, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2023-08-22.

How severe is CVE-2022-47022?

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

Is CVE-2022-47022 known to be exploited?

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

NULL pointer dereference in Open-Mpi Hwloc

CVE-2022-47022

An issue was discovered in open-mpi hwloc 2.1.0 allows attackers to cause a denial of service or other unspecified impacts via glibc-cpuset in topology-linux.c.

Published 2023-08-22 · 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: 0.003 (21.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Open-Mpi Hwloc

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

fusion-scan/fusion-scan.github.io

References

github.com/open-mpi/hwloc/issues/544 (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2022-47022?: CVE-2022-47022 is a medium-severity vulnerability in Open-Mpi Hwloc, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2023-08-22.
How severe is CVE-2022-47022?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2022-47022 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.