Apple iOS: Users removed from an iMessage conversation may still be able to alter state
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A logic issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3, tvOS 12.3. Users removed from an iMessage conversation may still be able to alter state.
Why it matters now
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 12.3 | 12.3 | Patch available | CNA |
| Apple | macOS | before 10.14 | 10.14 | Patch available | CNA |
| Apple | macOS | before 12.3 | 12.3 | Patch available | CNA |
Remediation
- Fix · CNA iOS (Apple) Fixed in 12.3
- Fix · CNA macOS (Apple) Fixed in 10.14
- Fix · CNA macOS (Apple) Fixed in 12.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 10.14
33 records Highest priority Priority MEDIUM 6 MEDIUM, 27 LOW
Other records, highest priority first
- TI-2019-06124 Out-of-bounds read in Apple iOSPriority MEDIUM 46
- TI-2019-05178 Apple iOS: A thorough security audit of the FaceTime service uncovered an issue with Live…Priority MEDIUM 45
- TI-2018-03247 This issue is fixed in macOS Mojave 10.14.Priority MEDIUM 44
- Release ·
Apple iOS 12.3
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-06168 Improper input validation in Apple iOSPriority LOW 37
- TI-2019-06149 Improper input validation in Apple iOSPriority LOW 36
- TI-2019-06206 Improper input validation in Apple iOSPriority LOW 35
Show 1 more group
- Release ·
Apple macOS 12.3
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2019-06168 Improper input validation in Apple iOSPriority LOW 37
- TI-2019-06206 Improper input validation in Apple iOSPriority LOW 35
- TI-2019-06188 Apple macOS: An attacker in a privileged network position can modify driver statePriority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8631
- 2026-10-03 Alias added: GHSA-96qv-qp42-qgwg
References
More Apple Iphone Os 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-2019-8631 · CVE Program
- CVE-2019-8631 · NVD
- FIRST EPSS
- GHSA-96qv-qp42-qgwg · 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