6.5

CVE-2023-28204: Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

CVSS: 6.5v3.1MediumKEVAnalyzed
AliasesUBUNTU-CVE-2023-28204DEBIAN-CVE-2023-28204
Published 23-06-2023Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2023-28204 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 22-05-2023. EPSS estimates a 14.29% chance of exploitation in the next 30 days, higher than 96.5% 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
14.29%
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-5427-1MGASA-2023-0197RHSA-2023:3432RHSA-2023:3433RHSA-2025:10364SUSE-SU-2023:2606-1

Timeline

  1. 22-05-2023
    Added to CISA KEVApple Multiple Products WebKit Out-of-Bounds Read Vulnerability
  2. 12-06-2023
    CISA remediation dueApply updates per vendor instructions.
  3. 23-06-2023
    PublishedVulnerability first disclosed.
  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 watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information. Apple is aware of a report that this issue may have been actively exploited.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

14.29%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

0.00 pp

From 14.29% on 19-09-2026

19-09-202619-10-2026
EPSS score
14.29%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
22-05-2023
Federal due date
12-06-2023

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2023-28204

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple7 products
  • ios and ipados≥ unspecified, < 15.7 | ≥ unspecified, < 16.5
  • ipados< 15.7.6 | ≥ 16.0, < 16.5
  • iphone_os< 15.7.6 | ≥ 16.0, < 16.5
  • macos≥ unspecified, < 13.4 | ≥ 13.0, < 13.4
  • safari≥ unspecified, < 16.5 | < 16.5
Ubuntu5 products
  • qtwebkit-opensource-srcAll versions (No fix recorded)
  • qtwebkit-sourceAll versions (No fix recorded)
  • webkit2gtkAll versions (No fix recorded) | < 2.40.4-0ubuntu0.22.04.1
  • webkitgtkAll versions (No fix recorded)
  • wpewebkitAll versions (No fix recorded)
Debian2 products
  • webkit2gtk< 2.40.2-1~deb12u1 | < 2.40.2-1
  • wpewebkitAll versions (No fix recorded) | < 2.40.2-2
Webkitgtk1 product

4 vendors · 15 products

References

15 links
Show all 15 references