CVE-2022-40923Public exploitNetwork attack vector

Process crash via invalid Mach-O segment access

Published Sep 30, 2022 · Updated May 20, 2025

Improper input validation in LIEF 0.12.1 allows remote attackers to crash a consuming process by supplying a crafted Mach-O file. In parse_dyldinfo_generic_bind, the file reaches SegmentCommand::virtual_address with an invalid object address, causing a near-null read and segmentation fault. A target application must process the attacker-supplied file with LIEF; the demonstrated consequence is termination of that process without data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in LIEF 0.12.1 allows remote attackers to crash a consuming process by supplying a crafted Mach-O file. In parse_dyldinfo_generic_bind, the file reaches SegmentCommand::virtual_address with an invalid object address, causing a near-null read and segmentation fault. A target application must process the attacker-supplied file with LIEF; the demonstrated consequence is termination of that process without data disclosure or modification.

The record

CVE
CVE-2022-40923
Published
Sep 30, 2022
Updated
May 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 30, 2022CVE publishedPublication date reported by the CVE source.
  2. May 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1204.002Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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