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Vulnerability details: VCID-4j93-vs1s-rffe
Vulnerability ID VCID-4j93-vs1s-rffe
Aliases CVE-2018-4162
Summary An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. tvOS before 11.3 is affected. watchOS before 4.3 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
Status Published
Exploitability 2.0
Weighted Severity 7.9
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
epss 0.40022 https://api.first.org/data/v1/epss?cve=CVE-2018-4162
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-4162
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-4162
Reference id Reference type URL
http://packetstormsecurity.com/files/158874/Safari-Webkit-For-iOS-7.1.2-JIT-Optimization-Bug.html
https://api.first.org/data/v1/epss?cve=CVE-2018-4162
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4162
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://support.apple.com/HT208693
https://support.apple.com/HT208694
https://support.apple.com/HT208695
https://support.apple.com/HT208696
https://support.apple.com/HT208697
https://support.apple.com/HT208698
http://www.securitytracker.com/id/1040604
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:webkitgtk:webkitgtk\+:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
CVE-2018-4162 https://nvd.nist.gov/vuln/detail/CVE-2018-4162
USN-3635-1 https://usn.ubuntu.com/3635-1/
Data source Metasploit
Description This module exploits a JIT optimization bug in Safari Webkit. This allows us to write shellcode to an RWX memory section in JavaScriptCore and execute it. The shellcode contains a kernel exploit (CVE-2016-4669) that obtains kernel rw, obtains root and disables code signing. Finally we download and execute the meterpreter payload. This module has been tested against iOS 7.1.2 on an iPhone 4.
Note 
Stability:
  - crash-service-down
SideEffects: []
Reliability:
  - unreliable-session
Ransomware campaign use Unknown
Source publication date Aug. 25, 2016
Platform Apple_iOS
Source URL https://github.com/rapid7/metasploit-framework/tree/master/modules/exploits/apple_ios/browser/safari_jit.rb
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-4162
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-4162
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.97202
EPSS Score 0.40022
Published At July 31, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:43:54.740806+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/3635-1/ 37.0.0