CVE-2023-32387Network attack vector

Remote code execution via dcerpc use-after-free

Published Jun 23, 2023 · Updated Nov 4, 2025

A use-after-free in Apple macOS dcerpc allows remote attackers to cause unexpected app termination or execute arbitrary code. The dcerpc subsystem can continue using memory after it has been released while processing remote requests, enabling memory corruption. No authentication or user interaction is required in the published vector; exploitation can crash an application or achieve code execution.

CVSS severity9.8
Critical
EPSS probability1.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A use-after-free in Apple macOS dcerpc allows remote attackers to cause unexpected app termination or execute arbitrary code. The dcerpc subsystem can continue using memory after it has been released while processing remote requests, enabling memory corruption. No authentication or user interaction is required in the published vector; exploitation can crash an application or achieve code execution.

The record

CVE
CVE-2023-32387
Published
Jun 23, 2023
Updated
Nov 4, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-416, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <11.7
  2. Affected versionversion=unspecified <12.6
  3. Affected versionversion=unspecified <13.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <11.7; version=unspecified <12.6; version=unspecified <13.4

Published CVSS scores

9.8NVDCVSS: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.

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

No observations available

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

Weakness, pattern, technique

CWE-416Use After Free
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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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