CVE-2019-8856

What it is

An API issue existed in the handling of outgoing phone calls initiated with Siri. This issue was addressed with improved state handling. This issue is fixed in iOS 13.3 and iPadOS 13.3, watchOS 6.1.1, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra. Calls made using Siri may be initiated using the wrong cellular plan on devices with two active plans.

At a glance

Exploitability

Can be exploited locally on the machine without logging in, but needs a user to act. Limited direct impact.

Exploit odds

0.7% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-10-27 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:42 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.7% in the next 30 days (EPSS).
• Severity: 3.3 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-10-27 21:15 UTC

Last modified

2026-06-17 02:42 UTC

Exploit probability

0.7% · EPSS, next 30 days

Record status

Modified

Affected

• Apple Ipados < 13.3
• Apple Iphone Os < 13.3
• Apple Mac Os X < 10.15.2
• Apple Watchos < 6.1.1

Attack profile CVSS 3.1 · 3.3

Attack vector

Local

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-8856.md and follow it. Check whether this project is affected by CVE-2019-8856. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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