CVE-2024-44183

Local service interruption via mDNSResponder logic error

Published Sep 16, 2024 · Updated Apr 2, 2026

Logic error in mDNSResponder in affected Apple operating systems allows local users to cause a denial-of-service through an app. Apple identifies improved error handling as the correction but has not disclosed the responsible function, malformed state, or exact interruption mode. Exploitation requires code execution as a local app; published assessments report availability impact only, with no confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Logic error in mDNSResponder in affected Apple operating systems allows local users to cause a denial-of-service through an app. Apple identifies improved error handling as the correction but has not disclosed the responsible function, malformed state, or exact interruption mode. Exploitation requires code execution as a local app; published assessments report availability impact only, with no confidentiality or integrity impact.

The record

CVE
CVE-2024-44183
Published
Sep 16, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-400, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2026Record 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=0 <17.7
  2. Affected versionversion=0 <18

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <17.7; version=0 <18
Apple · visionOSversion=0 <2
Apple · tvOSversion=0 <18
Apple · macOSversion=0 <13.7; version=0 <14.7; version=0 <15
Apple · watchOSversion=0 <11

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
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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