CVE-2018-4178 — A permissions issue existed in which execute permission was incorrectly granted

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MEDIUM

A permissions issue existed in which execute permission was incorrectly granted

Published Apr 3, 2019

5.5

MEDIUM

CVSS 3.0

EPSS 0.26%

Description

A permissions issue existed in which execute permission was incorrectly granted. This issue was addressed with improved permission validation. This issue affected versions prior to macOS High Sierra 10.13.4.

Affected products

Vendor n/a Product macOS Default
n/a
- Version
  Versions prior to: macOS High Sierra 10.13.4
  Status
  affected
  Constraints
  -

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

Vendor

Product

Default status

Versions

n/a

macOS

n/a

Version	Status	Constraints
Versions prior to: macOS High Sierra 10.13.4	affected	-

Remediation

No remediation recorded yet.

Metrics

0.26% 0.00263

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00263

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 1, 2026	0.26% (0.00263)	16.36th	v5 (v2026.06.15)
Sep 20, 2026	0.26% (0.00263)	18.40th	v5 (v2026.06.15)
Jul 20, 2024	0.04% (0.00044)	12.95th	v3 (v2023.03.01)
May 25, 2024	0.04% (0.00044)	12.27th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00044)	10.26th	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	0.06% (0.00061)	0.14th	v5 (v2026.06.15)
Apr 14, 2021	0.06% (0.00061)	0.00th	v1