CVE-2020-3877
HIGH
7.5
CVSS Score
Published: February 27, 2020 at 08:45 PM UTC
Updated: June 17, 2026 at 03:19 AM UTC
2 products affected across 1 vendormacOSwatchOS
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3, watchOS 6.1.2. A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 10.15.3v < macOS Catalina 10.15.3
Affected range stops below 10.15.3, so it looks safe — our inference, not a vendor statement
Affected range stops below macOS Catalina 10.15.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://support.apple.com/HT210919x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://support.apple.com/HT210921CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125
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