What is CVE-2022-40923?

CVE-2022-40923 is a medium-severity vulnerability in Lief-Project Lief, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2022-09-30.

How severe is CVE-2022-40923?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2022-40923 known to be exploited?

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

Improper input validation in Lief-Project Lief

CVE-2022-40923

A vulnerability in the LIEF::MachO::SegmentCommand::virtual_address function of LIEF v0.12.1 allows attackers to cause a denial of service (DOS) through a segmentation fault via a crafted MachO file.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2022-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.008 · change: +0.001

Affected products

Lief-Project Lief — versions 0.12.1

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

References

github.com/lief-project/LIEF/issues/784 (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-40923?: CVE-2022-40923 is a medium-severity vulnerability in Lief-Project Lief, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2022-09-30.
How severe is CVE-2022-40923?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2022-40923 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.