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Vulnerability details: VCID-vmas-85zm-zqfz
Vulnerability ID VCID-vmas-85zm-zqfz
Aliases CVE-2021-30848
Summary A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30848.json
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00662 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00898 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00898 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00898 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00898 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00898 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00898 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2021-30848
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-2021-30848
cvssv3.1 7.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30848
archlinux High https://security.archlinux.org/AVG-2399
archlinux High https://security.archlinux.org/AVG-2400
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30848.json
https://api.first.org/data/v1/epss?cve=CVE-2021-30848
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30809
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30836
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30848
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30849
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30858
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45482
http://seclists.org/fulldisclosure/2021/Oct/60
http://seclists.org/fulldisclosure/2021/Oct/61
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://support.apple.com/en-us/HT212814
https://support.apple.com/en-us/HT212816
https://support.apple.com/kb/HT212869
2017901 https://bugzilla.redhat.com/show_bug.cgi?id=2017901
AVG-2399 https://security.archlinux.org/AVG-2399
AVG-2400 https://security.archlinux.org/AVG-2400
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:macos:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
CVE-2021-30848 https://nvd.nist.gov/vuln/detail/CVE-2021-30848
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: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-2021-30848.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-2021-30848
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-2021-30848
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 0.7026
EPSS Score 0.00662
Published At Aug. 4, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:48:38.161987+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.19/community.json 37.0.0