CVE-2019-8736 — An input validation issue was addressed with improved input validation

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MEDIUM

An input validation issue was addressed with improved input validation

Published Oct 27, 2020

6.5

MEDIUM

CVSS 3.1

EPSS 0.79%

Description

An input validation issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. An attacker in a privileged network position may be able to leak sensitive user information.

Affected products

Vendor Apple Product macOS Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <10.15

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Apple

macOS

n/a

Version	Status	Constraints
unspecified	affected	<10.15

Remediation

No remediation recorded yet.

Metrics

0.79% 0.00788

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.00788

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	0.79% (0.00788)	54.61th	v5 (v2026.06.15)
Sep 20, 2026	0.79% (0.00788)	54.66th	v5 (v2026.06.15)
Jul 20, 2024	0.06% (0.00063)	27.33th	v3 (v2023.03.01)
Jun 14, 2024	0.06% (0.00063)	26.82th	v3 (v2023.03.01)
Mar 7, 2023	0.06% (0.00063)	24.77th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.09% (0.00092)	0.27th	v5 (v2026.06.15)
Apr 14, 2021	0.09% (0.00092)	0.00th	v1

Weaknesses (1)

CWE-20

Improper Input Validation

References (2)

https://support.apple.com/en-us/HT210634
x_refsource_MISCVendor Advisory
https://support.apple.com/en-us/HT210722
x_refsource_MISCVendor Advisory

Link	Providers	Tags
https://support.apple.com/en-us/HT210634		x_refsource_MISCVendor Advisory
https://support.apple.com/en-us/HT210722		x_refsource_MISCVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner apple

Published Oct 27, 2020

Updated Aug 4, 2024

Reserved Feb 18, 2019

Link CVE-2019-8736

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2019-8736

Red Hat

Severity n/a

Public date n/a

Links CVE-2019-8736