CVE-2022-32790Network attack vector

Remote service interruption via undisclosed libresolv checks

Published Sep 23, 2022 · Updated May 22, 2025

Denial of service in Apple macOS and watchOS before 8.6 allows remote attackers to interrupt affected services through libresolv. Apple has not disclosed the specific libresolv input or deficient check, stating only that improved checks addressed the issue. No authentication or user interaction is required; the reported consequence is limited to service interruption, with no disclosed code execution or data access.

CVSS severity7.5
High
EPSS probability1.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Apple macOS and watchOS before 8.6 allows remote attackers to interrupt affected services through libresolv. Apple has not disclosed the specific libresolv input or deficient check, stating only that improved checks addressed the issue. No authentication or user interaction is required; the reported consequence is limited to service interruption, with no disclosed code execution or data access.

The record

CVE
CVE-2022-32790
Published
Sep 23, 2022
Updated
May 22, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 23, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 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 <11.6
  2. Affected versionversion=unspecified <12.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <11.6; version=unspecified <12.4
Apple · watchOSversion=unspecified <15.5; version=unspecified <2022; version=unspecified <8.6

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 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-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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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