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Vulnerability details: VCID-pyba-gwea-9uab
Vulnerability ID VCID-pyba-gwea-9uab
Aliases CVE-2018-4386
Summary Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.
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 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
epss 0.39018 https://api.first.org/data/v1/epss?cve=CVE-2018-4386
cvssv3 6.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-4386
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-4386
Reference id Reference type URL
http://packetstormsecurity.com/files/155871/Sony-Playstation-4-Webkit-Code-Execution.html
https://api.first.org/data/v1/epss?cve=CVE-2018-4386
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4386
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://support.apple.com/kb/HT209192
https://support.apple.com/kb/HT209194
https://support.apple.com/kb/HT209195
https://support.apple.com/kb/HT209196
https://support.apple.com/kb/HT209197
https://support.apple.com/kb/HT209198
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: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:*:*:*:*:*:*:*:*
CVE-2018-4386 Exploit https://bugs.chromium.org/p/project-zero/issues/detail?id=1665
CVE-2018-4386 Exploit https://github.com/Fire30/bad_hoist/tree/e26ca0d2dd3c34bfaa421249bd9486a5c0ee64c4
CVE-2018-4386 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/webapps/47893.js
CVE-2018-4386 Exploit https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/45912.js
CVE-2018-4386 https://nvd.nist.gov/vuln/detail/CVE-2018-4386
USN-3828-1 https://usn.ubuntu.com/3828-1/
Data source Exploit-DB
Date added Nov. 29, 2018
Description WebKit JSC - BytecodeGenerator::hoistSloppyModeFunctionIfNecessary Does not Invalidate the 'ForInContext' Object
Ransomware campaign use Known
Source publication date Nov. 29, 2018
Exploit type dos
Platform multiple
Source update date Nov. 29, 2018
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1665
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L 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-2018-4386
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-2018-4386
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 0.97135
EPSS Score 0.39018
Published At July 31, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:36:23.322647+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/3828-1/ 37.0.0