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Vulnerability details: VCID-cpz2-hvyf-aaaq
Vulnerability ID VCID-cpz2-hvyf-aaaq
Aliases CVE-2018-4266
Summary A race condition was addressed with additional validation. This issue affected versions prior toiVersions prior to: OS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-4266.html
epss 0.00355 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
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epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
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epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
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epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
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epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
epss 0.01019 https://api.first.org/data/v1/epss?cve=CVE-2018-4266
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4266
cvssv3 4.7 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2018-4266
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2018-4266
generic_textual Medium https://support.apple.com/en-us/HT208934
generic_textual Medium https://ubuntu.com/security/notices/USN-3743-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-3743-1
generic_textual Medium https://webkitgtk.org/security/WSA-2018-0006.html
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-4266.html
https://api.first.org/data/v1/epss?cve=CVE-2018-4266
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4266
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://support.apple.com/en-us/HT208934
https://support.apple.com/kb/HT208932
https://support.apple.com/kb/HT208933
https://support.apple.com/kb/HT208934
https://support.apple.com/kb/HT208935
https://support.apple.com/kb/HT208936
https://support.apple.com/kb/HT208938
https://ubuntu.com/security/notices/USN-3743-1
https://usn.ubuntu.com/usn/usn-3743-1
https://webkitgtk.org/security/WSA-2018-0006.html
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-2018-4266 https://nvd.nist.gov/vuln/detail/CVE-2018-4266
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/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:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-4266
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:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-4266
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 0.57035
EPSS Score 0.00355
Published At June 10, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.