Improper input validation in Apple iOS
Priority LOW 36CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6. A remote attacker may cause an unexpected application termination.
Why it matters now
EPSS 0.01587 75th percentileScored 2026-11-07
Fix Fixed iOS (Apple): iOS 13.6 and iPadOS 13.6
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS | before iOS 13.6 and iPadOS 13.6 | iOS 13.6 and iPadOS 13.6 | Patch available | CNA |
- iOS VendorApple Affected before iOS 13.6 and iPadOS 13.6 Fixed in iOS 13.6 and iPadOS 13.6 Patch available CNA
Remediation
- Fix · CNA iOS (Apple) Fixed in iOS 13.6 and iPadOS 13.6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iOS iOS 13.6 and iPadOS 13.6
28 records Highest priority Priority CRITICAL 1 CRITICAL, 1 HIGH, 4 MEDIUM, 22 LOW
Other records, highest priority first
- TI-2020-07980 Out-of-bounds write in Apple iOSPriority CRITICAL 93
- TI-2020-08007 An issue existed in the handling of environment variables.Priority HIGH 82
- TI-2020-07969 Use after free in Apple iOSPriority MEDIUM 49
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9931
- 2026-10-03 Alias added: GHSA-q526-jhq6-8w54
References
Advisory 1
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-2020-9931 · CVE Program
- CVE-2020-9931 · NVD
- FIRST EPSS
- GHSA-q526-jhq6-8w54 · 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