Use after free in Apple iOS and iPadOS
Priority LOW 27CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
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 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An app may be able to cause unexpected system termination.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00205 10th percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 18.7.7, 26.3macOS (Apple): 14.8.5, 15.7.5, 26.3+3 more products
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS and iPadOS | before 18.7.7; before 26.3 | 18.7.7, 26.3 | Patch available | CNA |
| Apple | macOS | before 14.8.5; before 15.7.5; before 26.3 | 14.8.5, 15.7.5, 26.3 | Patch available | CNA |
| Apple | tvOS | before 26.3 | 26.3 | Patch available | CNA |
| Apple | visionOS | before 26.3 | 26.3 | Patch available | CNA |
| Apple | watchOS | before 26.3 | 26.3 | Patch available | CNA |
- iOS and iPadOS VendorApple Affected before 18.7.7; before 26.3 Fixed in 18.7.7, 26.3 Patch available CNA
- macOS VendorApple Affected before 14.8.5; before 15.7.5; before 26.3 Fixed in 14.8.5, 15.7.5, 26.3 Patch available CNA
- tvOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
- visionOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
- watchOS VendorApple Affected before 26.3 Fixed in 26.3 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 18.7.7; 26.0 to before 26.3 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 18.7.7; 26.0 to before 26.3 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 14.0 to before 14.8.5; 15.0 to before 15.7.5; 26.0 to before 26.3 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 26.3 | Vulnerable | Apple |
| cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* | before 26.3 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 26.3 | Vulnerable | Apple |
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 18.7.7; 26.0 to before 26.3 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 18.7.7; 26.0 to before 26.3 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 14.0 to before 14.8.5; 15.0 to before 15.7.5; 26.0 to before 26.3 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
- cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 26.3 Vulnerable ·Apple
Remediation
- Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.7, 26.3
- Fix · CNA macOS (Apple) Fixed in 14.8.5, 15.7.5, 26.3
- Fix · CNA tvOS (Apple) Fixed in 26.3
- Fix · CNA visionOS (Apple) Fixed in 26.3
- Fix · CNA watchOS (Apple) Fixed in 26.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 14.8.5, 15.7.5, 26.3
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-16696 Integer overflow in Apple macOSPriority MEDIUM 40
- TI-2026-16724 Sensitive information in log files in Apple iOS and iPadOSPriority LOW 24
- Release ·
Apple iOS and iPadOS, visionOS 18.7.7, 26.3
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-16724 Sensitive information in log files in Apple iOS and iPadOSPriority LOW 24
Timeline
- 2026-10-02 Threatist record created from CVE-2026-20637
- 2026-10-03 Alias added: GHSA-qmpr-r5h7-6c7x
References
Advisory 8
- https://support.apple.com/en-us/126346
- https://support.apple.com/en-us/126348
- https://support.apple.com/en-us/126351
- https://support.apple.com/en-us/126352
- https://support.apple.com/en-us/126353
- https://support.apple.com/en-us/126793
- https://support.apple.com/en-us/126795
- https://support.apple.com/en-us/126796
More Apple Ipados vulnerabilities
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-20637 · CVE Program
- CVE-2026-20637 · NVD
- FIRST EPSS
- GHSA-qmpr-r5h7-6c7x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences