7.8

CVE-2023-42873: apple ios and ipados Out-of-bounds Write

CVSS: 7.8v3.1HighModified
Published 21-02-2024Last modified 04-11-2025
Open JSON

Vulnerability summary

CVE-2023-42873 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in apple ios and ipados. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.1% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-02-2024
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

The issue was addressed with improved bounds checks. This issue is fixed in macOS Sonoma 14.1, tvOS 17.1, macOS Monterey 12.7.1, iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, macOS Ventura 13.6.1. An app may be able to execute arbitrary code with kernel privileges.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple5 products
  • ios and ipados≥ unspecified, < 16.7 | ≥ unspecified, < 17.1
  • ipad_os< 17.1 | ≥ 16.0, < 16.7.2
  • iphone_os< 17.1 | ≥ 16.0, < 16.7.2
  • macosEOL≥ unspecified, < 14.1 | ≥ unspecified, < 13.6 | ≥ unspecified, < 12.7 | ≥ 12.0, < 12.7.1 | ≥ 13.0, < 13.6.1 | 14.0
  • tvos≥ unspecified, < 17.1 | < 17.1

1 vendor · 5 products

References

10 links