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Vulnerability details: VCID-v9ku-kfh2-aaar
Vulnerability ID VCID-v9ku-kfh2-aaar
Aliases CVE-2021-30562
Summary Use after free in WebSerial in Google Chrome prior to 91.0.4472.164 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-2021-30562.html
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00515 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00519 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00552 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
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epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.00945 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
epss 0.01817 https://api.first.org/data/v1/epss?cve=CVE-2021-30562
cvssv3.1 8.8 https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
generic_textual HIGH https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30562
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30562
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30562
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30562
archlinux High https://security.archlinux.org/AVG-2166
archlinux High https://security.archlinux.org/AVG-2167
archlinux High https://security.archlinux.org/AVG-2168
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30562.html
https://api.first.org/data/v1/epss?cve=CVE-2021-30562
https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
https://crbug.com/1220078
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30562
990079 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=990079
ASA-202107-30 https://security.archlinux.org/ASA-202107-30
ASA-202107-31 https://security.archlinux.org/ASA-202107-31
ASA-202107-46 https://security.archlinux.org/ASA-202107-46
AVG-2166 https://security.archlinux.org/AVG-2166
AVG-2167 https://security.archlinux.org/AVG-2167
AVG-2168 https://security.archlinux.org/AVG-2168
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:*:*:*:*:*:*:*:*
CVE-2021-30562 https://nvd.nist.gov/vuln/detail/CVE-2021-30562
GLSA-202107-49 https://security.gentoo.org/glsa/202107-49
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://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
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-2021-30562
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-2021-30562
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-2021-30562
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 0.64031
EPSS Score 0.00515
Published At April 10, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.