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Vulnerability details: VCID-gd2f-es56-1bep
Vulnerability ID VCID-gd2f-es56-1bep
Aliases CVE-2019-8766
Summary Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in watchOS 6.1, iCloud for Windows 11.0. 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-2019-8766.json
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.0052 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.00546 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.00546 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.00546 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.00546 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
epss 0.00546 https://api.first.org/data/v1/epss?cve=CVE-2019-8766
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-2019-8766
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8766
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8766.json
https://api.first.org/data/v1/epss?cve=CVE-2019-8766
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8625
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8710
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8720
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8743
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8764
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8766
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8769
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8771
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8782
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8783
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8808
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8811
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8813
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8815
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8816
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8819
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8820
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8823
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30666
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30761
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://security.gentoo.org/glsa/202003-22
https://support.apple.com/HT210724
https://support.apple.com/HT210727
1876543 https://bugzilla.redhat.com/show_bug.cgi?id=1876543
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:o:apple:watchos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
CVE-2019-8766 https://nvd.nist.gov/vuln/detail/CVE-2019-8766
RHSA-2020:4035 https://access.redhat.com/errata/RHSA-2020:4035
RHSA-2020:4451 https://access.redhat.com/errata/RHSA-2020:4451
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-2019-8766.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-2019-8766
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-2019-8766
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 0.65845
EPSS Score 0.0052
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:44:18.094399+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.11/community.json 37.0.0