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Vulnerability details: VCID-xmj4-9spz-zuc9
Vulnerability ID VCID-xmj4-9spz-zuc9
Aliases CVE-2021-30564
Summary Heap buffer overflow in WebXR 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-787 Out-of-bounds Write
System Score Found at
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
epss 0.00454 https://api.first.org/data/v1/epss?cve=CVE-2021-30564
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30564
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30564
archlinux High https://security.archlinux.org/AVG-2166
archlinux High https://security.archlinux.org/AVG-2167
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-30564
https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
https://crbug.com/1221309
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30564
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
AVG-2166 https://security.archlinux.org/AVG-2166
AVG-2167 https://security.archlinux.org/AVG-2167
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-2021-30564 https://nvd.nist.gov/vuln/detail/CVE-2021-30564
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-2021-30564
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-2021-30564
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 0.62849
EPSS Score 0.00454
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:31:36.248620+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.17/community.json 37.0.0