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Vulnerability details: VCID-1z6f-k49d-qbff
Vulnerability ID VCID-1z6f-k49d-qbff
Aliases CVE-2019-8821
Summary Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 13.2 and iPadOS 13.2, tvOS 13.2, Safari 13.0.3, iTunes for Windows 12.10.2, iCloud for Windows 11.0, iCloud for Windows 7.15. Processing maliciously crafted web content may lead to arbitrary code execution.
Status Published
Exploitability 0.5
Weighted Severity 7.9
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 8.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8821.json
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
epss 0.01007 https://api.first.org/data/v1/epss?cve=CVE-2019-8821
cvssv3.1 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8821
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8821
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8821.json
https://api.first.org/data/v1/epss?cve=CVE-2019-8821
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8644
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8649
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8658
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8666
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8669
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8671
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8672
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8673
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8674
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8676
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8677
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8678
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8679
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8680
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8681
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8683
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8684
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8686
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8687
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8688
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8689
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8690
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8707
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8719
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8733
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8763
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8765
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8821
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8822
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/202003-22
https://support.apple.com/HT210721
https://support.apple.com/HT210723
https://support.apple.com/HT210725
https://support.apple.com/HT210726
https://support.apple.com/HT210727
https://support.apple.com/HT210728
1876592 https://bugzilla.redhat.com/show_bug.cgi?id=1876592
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: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:tvos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
CVE-2019-8821 https://nvd.nist.gov/vuln/detail/CVE-2019-8821
RHSA-2020:4035 https://access.redhat.com/errata/RHSA-2020:4035
No exploits are available.
Vector: CVSS:3.1/AV:N/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-2019-8821.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:N/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-2019-8821
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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-8821
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 0.76127
EPSS Score 0.01007
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:30:25.983636+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.11/community.json 37.0.0