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9.8
CVE-2020-3847: An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.
CVE-2020-3847 · published 6 years ago
Summary
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.
What to do
- Update apple mac_os_x to version 10.15.3 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| apple | mac_os_x |
< 10.15.3 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* |
Original advisory text
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be able to leak memory.
References
- https://support.apple.com/HT210919 Release Notes Vendor Advisory
Internet-facing
3 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker full control (estimated)
Type
CWE-20Improper Input Validation
CWE-125Out-of-bounds Read
Timeline
Published1 Apr 2020
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2020-3847 · NVD
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