Home/CVE/Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability
CVE

CVE-2023-28204

Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

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.

MEDIUM · CVSS 6.5 ⚠ CISA KEV EPSS 0.00077
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
Sigma rules8 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

⬡

Weakness Classification

CWE-125Out-of-bounds Read
CWE-125Out-of-bounds Read
▤

Affected Products & Versions

9
apple safari< 16.5
apple ipados< 15.7.6
apple ipados>= 16.0 and < 16.5
apple iphone os< 15.7.6
apple iphone os>= 16.0 and < 16.5
apple macos>= 13.0 and < 13.4
apple tvos< 16.5
apple watchos< 9.5
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · product-security@apple.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Jun 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

9
rhsaRHSA-2025:10364Important
suse-csafSUSE-SU-2023:3300-1
usnUSN-6264-1
suse-csafSUSE-SU-2023:2647-1
suse-csafSUSE-SU-2023:2606-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.gentoo.org/glsa/202401-04Third Party Advisory
https://support.apple.com/en-us/HT213757Release NotesVendor Advisory
https://support.apple.com/en-us/HT213758Release NotesVendor Advisory
https://support.apple.com/en-us/HT213761Release NotesVendor Advisory
https://support.apple.com/en-us/HT213762Release NotesVendor Advisory
https://support.apple.com/en-us/HT213764Release NotesVendor Advisory
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