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

CVE-2023-42916

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 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.

MEDIUM · CVSS 6.5 ⚠ CISA KEV EPSS 0.0005
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
Sigma rules8 YARA rules0
⬢

Required Remediation

Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

⬡

Weakness Classification

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

Affected Products & Versions

11
apple safari< 17.1.2
apple ipados< 15.8.1
apple ipados>= 16.0 and < 16.7.3
apple ipados>= 17.0 and < 17.1.2
apple iphone os< 15.8.1
apple iphone os>= 16.0 and < 16.7.3
apple iphone os>= 17.0 and < 17.1.2
apple macos>= 14.0 and < 14.1.2
◈

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 NVD30 Nov 2023 · 11:15 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

10
rhsaRHSA-2025:10364Important
apple-security120308
suse-csafSUSE-SU-2023:4824-1
suse-csafSUSE-SU-2023:4827-1
suse-csafSUSE-SU-2023:4828-1
🔗

References & Sources

19
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2023/Dec/12Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Dec/13Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Dec/3Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Dec/4Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Dec/5Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2023/Dec/8Mailing ListThird Party Advisory
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin