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Vulnerability details: VCID-abu1-begc-tyhd
Vulnerability ID VCID-abu1-begc-tyhd
Aliases CVE-2021-30889
Summary A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, iOS 15.1 and iPadOS 15.1, watchOS 8.1, tvOS 15.1. 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)
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30889.json
https://api.first.org/data/v1/epss?cve=CVE-2021-30889
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30818
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30823
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30846
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30851
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30884
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30888
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30889
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42762
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45481
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45483
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
http://www.openwall.com/lists/oss-security/2021/12/20/6
2034386 https://bugzilla.redhat.com/show_bug.cgi?id=2034386
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:*:*:*:*:*:*:*:*
CVE-2021-30889 https://nvd.nist.gov/vuln/detail/CVE-2021-30889
RHSA-2022:1777 https://access.redhat.com/errata/RHSA-2022:1777
RHSA-2025:10364 https://access.redhat.com/errata/RHSA-2025:10364
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-2021-30889.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-2021-30889
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-2021-30889
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 0.71
EPSS Score 0.00696
Published At Aug. 4, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:31:47.782810+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.17/community.json 37.0.0