7.8

CVE-2018-4435: apple iphone_os Improper Input Validation

CVSS: 7.8v3.0HighModified
Published 03-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-4435 is a high (CVSS 7.8) Improper Input Validation vulnerability in apple iphone_os. EPSS estimates a 3.09% chance of exploitation in the next 30 days, higher than 87.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.0 (NVD)
EPSS score
3.09%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 03-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A logic issue was addressed with improved restrictions. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.09%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.09% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.09%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databaselocalmultipleVerified

    XNU - POSIX Shared Memory Mappings have Incorrect Maximum Protection

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Apple4 products

1 vendor · 4 products

References

4 links