VDB
CVE-2026-20687
CVE-2026-20687
PUBLISHED
CVSS 7.099999904632568 HIGH
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Tahoe 26.4, tvOS 26.4, watchOS 26.4. An app may be able to cause unexpected system termination or write kernel memory.
EPSS 0.00% · 0.3th percentile
Risk Scores
CVSS 3.1
7.099999904632568
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
EPSS Score
0.00%
0.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| apple | macos | 15.0, 26.0 |
| Apple | iOS and iPadOS | 0, 0 |
| Apple | watchOS | 0 |
| apple | ipados | 0, 26.0 |
| apple | watchos | 0 |
| Apple | macOS | 0, 0 |
| Apple | tvOS | 0 |
| apple | iphone_os | 0, 26.0 |
| apple | tvos | 0 |
Timeline
- Mar 25, 2026 CVE Published
- Mar 25, 2026 EPSS Score
- Mar 25, 2026 Coalition ESS Score
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 25, 2026 PoC Published
- Mar 26, 2026 PoC Published
- Mar 29, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
References
- https://support.apple.com/en-us/126797 url
- https://support.apple.com/en-us/126798 url
- https://support.apple.com/en-us/126793 advisory
- https://support.apple.com/en-us/126794 advisory
- https://support.apple.com/en-us/126800 advisory
- https://support.apple.com/en-us/126796 advisory
- https://support.apple.com/en-us/126792 advisory
- https://support.apple.com/en-us/126795 advisory
- https://support.apple.com/en-us/126799 advisory
- https://support.apple.com/en-us/126801 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-20687 advisory