Process crash via out-of-bounds audio stream parsing
Published Mar 25, 2026 · Updated Mar 25, 2026
Out-of-bounds access in CoreMedia across affected Apple operating systems allows remote attackers to crash a process via a crafted audio stream. CoreMedia's audio-stream parser accesses data beyond a valid buffer boundary while processing a malicious media file; Apple has not disclosed the affected function or exact bounds-check failure. Exploitation requires user interaction with the crafted file and affects availability by terminating the parsing process, with no reported data disclosure or modification.
Summary
What happened
Out-of-bounds access in CoreMedia across affected Apple operating systems allows remote attackers to crash a process via a crafted audio stream. CoreMedia's audio-stream parser accesses data beyond a valid buffer boundary while processing a malicious media file; Apple has not disclosed the affected function or exact bounds-check failure. Exploitation requires user interaction with the crafted file and affects availability by terminating the parsing process, with no reported data disclosure or modification.
The record
- CVE
- CVE-2026-20690
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- CWE-125, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 25, 2026CVE publishedPublication date reported by the CVE source.
- Mar 25, 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.
- Affected versionversion=0 <18.7.7
- Affected versionversion=0 <26.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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