CVE-2023-49313Public exploit

Arbitrary code execution via DYLD_INSERT_LIBRARIES

Published Nov 28, 2023 · Updated Aug 2, 2024

Dylib injection in XMachOViewer 0.04 allows local users to execute arbitrary code when launching the macOS application. The application honors DYLD_INSERT_LIBRARIES and loads an attacker-selected dynamic library without suppressing the injected library. Exploitation requires local control of the launch environment, and the library runs within the XMachOViewer process context.

CVSS severity9.8
Critical
EPSS probability1.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Dylib injection in XMachOViewer 0.04 allows local users to execute arbitrary code when launching the macOS application. The application honors DYLD_INSERT_LIBRARIES and loads an attacker-selected dynamic library without suppressing the injected library. Exploitation requires local control of the launch environment, and the library runs within the XMachOViewer process context.

The record

CVE
CVE-2023-49313
Published
Nov 28, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1574.006
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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 vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1574.006Hijack Execution Flow: Dynamic Linker Hijacking

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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