A logic issue existed in the handling of answering phone calls.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A logic issue existed in the handling of answering phone calls. The issue was addressed with improved state management. This issue is fixed in iOS 12.4. The initiator of a phone call may be able to cause the recipient to answer a simultaneous Walkie-Talkie connection.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA iOS (Apple) Fixed in iOS 12.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iOS iOS 12.4
33 records Highest priority Priority MEDIUM 25 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2019-06227 Out-of-bounds write in Apple iOSPriority MEDIUM 57
- TI-2019-06219 Use after free in Apple iOSPriority MEDIUM 57
- TI-2019-06229 Use after free in Apple iOSPriority MEDIUM 54
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8699
- 2026-10-03 Alias added: GHSA-59j4-2v5x-m6r9
References
Advisory 1
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-2019-8699 · CVE Program
- CVE-2019-8699 · NVD
- FIRST EPSS
- GHSA-59j4-2v5x-m6r9 · GitHub Advisory Database · CC BY 4.0
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