CVE-2025-43287

Process-memory corruption via crafted image

Published Sep 15, 2025 · Updated Sep 15, 2025

Memory corruption in ImageIO in Apple macOS before 26 allows attackers to corrupt process memory via a maliciously crafted image. ImageIO performs unsafe memory handling while decoding the image, but Apple has not disclosed the faulty operation or affected parser. Reaching the flaw requires a user or application to process the crafted image; Apple reports process-memory corruption without a further execution claim.

CVSS severity7.1
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in ImageIO in Apple macOS before 26 allows attackers to corrupt process memory via a maliciously crafted image. ImageIO performs unsafe memory handling while decoding the image, but Apple has not disclosed the faulty operation or affected parser. Reaching the flaw requires a user or application to process the crafted image; Apple reports process-memory corruption without a further execution claim.

The record

CVE
CVE-2025-43287
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-119, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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 <26

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <26

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1203Exploitation for Client Execution

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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