CVE-2025-43277

Memory corruption via crafted audio file processing

Published Jul 29, 2025 · Updated Apr 2, 2026

Memory corruption in CoreAudio across affected Apple platform releases allows attackers to corrupt process memory via a crafted audio file. Apple identifies CoreAudio as the locus and says improved memory handling resolved the issue, but does not disclose the faulty memory operation. Opening or otherwise causing an affected device to process the file is required; the disclosed consequence is memory corruption, and Apple gives no narrower result.

CVSS severity7.8
High
EPSS probability0.29%
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 CoreAudio across affected Apple platform releases allows attackers to corrupt process memory via a crafted audio file. Apple identifies CoreAudio as the locus and says improved memory handling resolved the issue, but does not disclose the faulty memory operation. Opening or otherwise causing an affected device to process the file is required; the disclosed consequence is memory corruption, and Apple gives no narrower result.

The record

CVE
CVE-2025-43277
Published
Jul 29, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-119, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2025CVE 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 <18.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=0 <18.6
Apple · visionOSversion=0 <2.6
Apple · tvOSversion=0 <18.6
Apple · macOSversion=0 <14.8; version=0 <15.6
Apple · watchOSversion=0 <11.6

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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)
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
T1204.002Malicious File

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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