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Vulnerability details: VCID-f9vw-812k-gfeb
Vulnerability ID VCID-f9vw-812k-gfeb
Aliases CVE-2020-27918
Summary A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27918.json
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2020-27918
cvssv3.1 7.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2020-27918
cvssv3.1 7.8 https://nvd.nist.gov/vuln/detail/CVE-2020-27918
archlinux High https://security.archlinux.org/AVG-1721
archlinux High https://security.archlinux.org/AVG-1722
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27918.json
https://api.first.org/data/v1/epss?cve=CVE-2020-27918
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27918
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29623
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1765
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1789
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1799
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1801
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1870
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21806
http://seclists.org/fulldisclosure/2020/Dec/32
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW/
https://support.apple.com/en-us/HT211930
https://support.apple.com/en-us/HT211933
https://support.apple.com/en-us/HT211934
https://support.apple.com/en-us/HT211935
https://www.debian.org/security/2021/dsa-4877
http://www.openwall.com/lists/oss-security/2021/03/22/1
1944323 https://bugzilla.redhat.com/show_bug.cgi?id=1944323
ASA-202103-24 https://security.archlinux.org/ASA-202103-24
ASA-202103-25 https://security.archlinux.org/ASA-202103-25
AVG-1721 https://security.archlinux.org/AVG-1721
AVG-1722 https://security.archlinux.org/AVG-1722
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*
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:ipados:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
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:macos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
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:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2020-27918 https://nvd.nist.gov/vuln/detail/CVE-2020-27918
RHSA-2021:4381 https://access.redhat.com/errata/RHSA-2021:4381
RHSA-2025:10364 https://access.redhat.com/errata/RHSA-2025:10364
USN-4894-1 https://usn.ubuntu.com/4894-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-27918.json
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: CVSS:3.1/AV:L/AC:L/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-2020-27918
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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-27918
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 0.38088
EPSS Score 0.00164
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:39:46.946634+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.18/community.json 37.0.0