CVE-2019-8626

Name: CVE-2019-8626
Creator: NVD / NIST
Published: 2019-12-18T18:15:30.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2019-8626 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An input validation issue was addressed with improved input validation. This issue is fixed in iOS 12.3, watchOS 5.2.1. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 12.3, watchOS 5.2.1. Processing a maliciously crafted message may lead to a denial of service.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.05%

60.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Apple	Iphone Os	< 12.3
Apple	Watchos	< 5.2.1

References

https://support.apple.com/HT210118Vendor Advisory
https://support.apple.com/HT210122Vendor Advisory
https://support.apple.com/HT210118Vendor Advisory
https://support.apple.com/HT210122Vendor Advisory

Timeline

Published: Dec 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-8626?

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 12.3, watchOS 5.2.1. Processing a maliciously crafted message may lead to a denial of service.

How severe is CVE-2019-8626?

CVE-2019-8626 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2019-8626?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-8626?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST