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Vulnerability details: VCID-q4sy-hkag-aaab
Vulnerability ID VCID-q4sy-hkag-aaab
Aliases CVE-2021-30556
Summary Use after free in WebAudio in Google Chrome prior to 91.0.4472.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30556.html
epss 0.00473 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
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epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
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epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
epss 0.00611 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
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epss 0.00615 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
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epss 0.01076 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
epss 0.01076 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
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epss 0.01076 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
epss 0.0156 https://api.first.org/data/v1/epss?cve=CVE-2021-30556
generic_textual Medium https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30556
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30556
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30556
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30556
archlinux High https://security.archlinux.org/AVG-2081
archlinux High https://security.archlinux.org/AVG-2082
archlinux High https://security.archlinux.org/AVG-2083
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30556.html
https://api.first.org/data/v1/epss?cve=CVE-2021-30556
https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html
https://crbug.com/1212599
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30556
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
https://security.gentoo.org/glsa/202107-06
990079 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990079
ASA-202106-46 https://security.archlinux.org/ASA-202106-46
ASA-202106-47 https://security.archlinux.org/ASA-202106-47
ASA-202107-4 https://security.archlinux.org/ASA-202107-4
AVG-2081 https://security.archlinux.org/AVG-2081
AVG-2082 https://security.archlinux.org/AVG-2082
AVG-2083 https://security.archlinux.org/AVG-2083
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CVE-2021-30556 https://nvd.nist.gov/vuln/detail/CVE-2021-30556
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30556
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-2021-30556
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://nvd.nist.gov/vuln/detail/CVE-2021-30556
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 0.61858
EPSS Score 0.00473
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.