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CVE-2020-9889

HIGH
7.8
CVSS Score
Published: October 16, 2020 at 04:38 PM UTC
Updated: June 17, 2026 at 03:28 AM UTC
5 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity
HIGH7.8
Exploit prediction
EPSS 2%

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. Processing a maliciously crafted audio file may lead to arbitrary code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS· Apple
95%
v < 13.6
Affected range stops below 13.6, so it looks safe — our inference, not a vendor statement
iPhone OS· Apple
95%
v < 13.6v < iOS 13.6 and iPadOS 13.6
Affected range stops below 13.6, so it looks safe — our inference, not a vendor statement
Affected range stops below iOS 13.6 and iPadOS 13.6, so it looks safe — our inference, not a vendor statement
macOS· Apple
95%
v < macOS Catalina 10.15.610.13 ≤ v < 10.13.610.14 ≤ v < 10.14.610.15 ≤ v < 10.15.610.13.610.13.6 security_update_2018-00210.13.6 security_update_2018-00310.13.6 security_update_2019-00110.13.6 security_update_2019-00210.13.6 security_update_2019-00310.13.6 security_update_2019-00410.13.6 security_update_2019-00510.13.6 security_update_2019-00610.13.6 security_update_2019-00710.13.6 security_update_2020-00110.13.6 security_update_2020-00210.13.6 security_update_2020-00310.14.610.14.6 security_update_2019-00110.14.6 security_update_2019-00210.14.6 security_update_2019-00410.14.6 security_update_2019-00510.14.6 security_update_2019-00610.14.6 security_update_2019-00710.14.6 security_update_2020-00110.14.6 security_update_2020-00210.14.6 security_update_2020-003
Affected range stops below 10.13.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.14.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.15.6, so it looks safe — our inference, not a vendor statement
Affected range stops below macOS Catalina 10.15.6, so it looks safe — our inference, not a vendor statement
tvOS· Apple
95%
v < 13.4.8v < tvOS 13.4.8
Affected range stops below 13.4.8, so it looks safe — our inference, not a vendor statement
Affected range stops below tvOS 13.4.8, so it looks safe — our inference, not a vendor statement
watchOS· Apple
95%
v < 6.2.8v < watchOS 6.2.8
Affected range stops below 6.2.8, so it looks safe — our inference, not a vendor statement
Affected range stops below watchOS 6.2.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/HT211288
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/HT211289
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/HT211290
x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.apple.com/HT211291
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
https://www.zerodayinitiative.com/advisories/ZDI-20-1391/

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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