Security readout for executives and security teams
Plain-English summary
Apple fixed a flaw where a specially crafted audio file could cause code execution on affected Apple devices. Business risk is highest where older iPhones, iPads, Macs, Apple Watches, or Apple TVs still process untrusted media.
Executive priority
Treat this as a patch-compliance priority for Apple fleets, especially mobile and macOS endpoints exposed to external media. No active exploitation is cited, but arbitrary code execution justifies prompt remediation.
Technical view
CVE-2020-27948 is an out-of-bounds write in Apple audio file processing. Apple says improved bounds checking fixes it. The disclosed impact is arbitrary code execution when processing a maliciously crafted audio file.
Likely exposure
Exposure is likely limited to Apple devices below iOS/iPadOS 14.3, macOS Big Sur 11.1, Catalina Security Update 2020-001, Mojave Security Update 2020-007, watchOS 7.2, or tvOS 14.3.
Exploitation context
The provided sources do not report active exploitation, and this CVE is not listed as KEV. The known trigger is processing a maliciously crafted audio file; no public exploit status is established in the bundle.
Researcher notes
The bundle does not include CVSS, CWE, root-cause detail beyond out-of-bounds write, or proof-of-concept status. Analysis should stay anchored to Apple’s stated impact and fixed release list.
Mitigation direction
- Update iPhone and iPad devices to iOS or iPadOS 14.3 or later.
- Update macOS Big Sur systems to 11.1 or later.
- Apply Security Update 2020-001 for Catalina systems still in scope.
- Apply Security Update 2020-007 for Mojave systems still in scope.
- Update watchOS to 7.2 and tvOS to 14.3 where applicable.
- Check Apple guidance for any platform-specific support limitations.
Validation and detection
- Inventory Apple devices and record operating system versions.
- Confirm fixed versions or named security updates are installed.
- Use MDM or endpoint tooling to identify noncompliant devices.
- Prioritize devices that receive or process external audio files.
- Document unsupported devices that cannot receive the vendor fixes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-27948 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/HT212011CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212003CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212005CVE reference · x_refsource_MISC
- https://support.apple.com/en-us/HT212009CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.