CVE-2024-44176

Denial of service via ImageIO bounds error

Published Sep 16, 2024 · Updated Apr 2, 2026

Out-of-bounds access in Apple ImageIO allows context-dependent attackers to interrupt image processing through a crafted image. ImageIO accesses data beyond a valid boundary while processing attacker-controlled image data because the affected bounds check is insufficient. An affected application or service must process the image; Apple reports denial of service only and does not disclose whether the result is a hang or crash.

CVSS severity5.5
Medium
EPSS probability7.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in Apple ImageIO allows context-dependent attackers to interrupt image processing through a crafted image. ImageIO accesses data beyond a valid boundary while processing attacker-controlled image data because the affected bounds check is insufficient. An affected application or service must process the image; Apple reports denial of service only and does not disclose whether the result is a hang or crash.

The record

CVE
CVE-2024-44176
Published
Sep 16, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-400, T1499
Attack vector
local
Privileges
unauthenticated

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 privilegesunauthenticated

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

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

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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
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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