6.5

CVE-2023-42916: Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

CVSS: 6.5v3.1MediumKEVAnalyzed
AliasesUBUNTU-CVE-2023-42916DEBIAN-CVE-2023-42916
Published 30-11-2023Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2023-42916 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in Apple Multiple Products. It is known to be exploited: CISA lists it, first on 04-12-2023. EPSS estimates a 17.82% chance of exploitation in the next 30 days, higher than 97.1% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
17.82%
0%100%
Medium · 0.00 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 10 · Related 5
DSA-5575-1MGASA-2024-0148RHSA-2023:4201RHSA-2023:4202RHSA-2025:10364SUSE-SU-2023:4824-1

Timeline

  1. 30-11-2023
    PublishedVulnerability first disclosed.
  2. 04-12-2023
    Added to CISA KEVApple Multiple Products WebKit Out-of-Bounds Read Vulnerability
  3. 25-12-2023
    CISA remediation dueApply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

17.82%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

0.00 pp

From 17.82% on 20-09-2026

20-09-202620-10-2026
EPSS score
17.82%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
04-12-2023
Federal due date
25-12-2023

CISA required action

Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. nvd.nist.gov/vuln/detail/CVE-2023-42916

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple5 products
  • ios and ipados≥ unspecified, < 17.1
  • ipados< 15.8.1 | ≥ 16.0, < 16.7.3 | ≥ 17.0, < 17.1.2
  • iphone_os< 15.8.1 | ≥ 16.0, < 16.7.3 | ≥ 17.0, < 17.1.2
  • macos≥ unspecified, < 14.1 | ≥ 14.0, < 14.1.2
  • safari≥ unspecified, < 17.1 | < 17.1.2
Ubuntu5 products
  • qtwebkit-opensource-srcAll versions (No fix recorded)
  • qtwebkit-sourceAll versions (No fix recorded)
  • webkit2gtkAll versions (No fix recorded) | < 2.42.3-0ubuntu0.22.04.1 | < 2.42.3-1
  • webkitgtkAll versions (No fix recorded)
  • wpewebkitAll versions (No fix recorded)
Debian3 products
  • webkit2gtk< 2.42.3-1~deb12u1 | < 2.42.3-1
  • wpewebkitAll versions (No fix recorded) | < 2.42.3-1
  • debian_linuxEOL11.0 | 12.0
Fedoraproject1 product
Webkitgtk1 product

5 vendors · 15 products

References

25 links
Show all 25 references