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Vulnerability details: VCID-5sj9-yv7p-87d9
Vulnerability ID VCID-5sj9-yv7p-87d9
Aliases CVE-2019-8523
Summary Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.
Status Published
Exploitability 0.5
Weighted Severity 8.4
Risk 4.2
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-787 Out-of-bounds Write
CWE-94 Improper Control of Generation of Code ('Code Injection')
System Score Found at
cvssv3 6.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8523.json
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
epss 0.01288 https://api.first.org/data/v1/epss?cve=CVE-2019-8523
cvssv3 7.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 9.3 https://nvd.nist.gov/vuln/detail/CVE-2019-8523
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-8523
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8523.json
https://api.first.org/data/v1/epss?cve=CVE-2019-8523
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8523
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1719208 https://bugzilla.redhat.com/show_bug.cgi?id=1719208
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: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-2019-8523 https://nvd.nist.gov/vuln/detail/CVE-2019-8523
RHSA-2019:3553 https://access.redhat.com/errata/RHSA-2019:3553
USN-3948-1 https://usn.ubuntu.com/3948-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-8523.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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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:C/I:C/A:C Found at https://nvd.nist.gov/vuln/detail/CVE-2019-8523
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-2019-8523
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 0.788
EPSS Score 0.01288
Published At Aug. 5, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:36:31.385138+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/3948-1/ 37.0.0