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CVE

CVE-2024-27851

The issue was addressed with improved bounds checks. This issue is fixed in Safari 17.5, iOS 17.5 and iPadOS 17.5, macOS

The issue was addressed with improved bounds checks. This issue is fixed in Safari 17.5, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, visionOS 1.2, watchOS 10.5. Processing maliciously crafted web content may lead to arbitrary code execution.

HIGH · CVSS 8.8 EPSS 0.00982
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

7
apple safari< 17.5
apple ipados< 17.5
apple iphone os< 17.5
apple macos>= 14.0 and < 14.5
apple tvos< 17.5
apple visionos< 1.2
apple watchos< 10.5
◈

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

8.8
HIGH · 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 NVD10 Jun 2024 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
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

19
rhsaRHSA-2024:9679Important
rhsaRHSA-2024:9646Important
rhsaRHSA-2024:8496Important
rhsaRHSA-2024:9653Important
rhsaRHSA-2025:10364Important
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2024/Jun/5Mailing ListThird Party Advisory
https://support.apple.com/en-us/HT214101Vendor Advisory
https://support.apple.com/en-us/HT214102Vendor Advisory
https://support.apple.com/en-us/HT214103Vendor Advisory
https://support.apple.com/en-us/HT214104Vendor Advisory
https://support.apple.com/en-us/HT214106Vendor Advisory
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