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Vulnerability details: VCID-h1qd-enzf-jka7
Vulnerability ID VCID-h1qd-enzf-jka7
Aliases CVE-2021-30554
Summary Use after free in WebGL 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 2.0
Weighted Severity 8.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.24629 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
epss 0.2734 https://api.first.org/data/v1/epss?cve=CVE-2021-30554
cvssv3.1 8.8 https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html
ssvc Attend https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html
cvssv3.1 8.8 https://crbug.com/1219857
ssvc Attend https://crbug.com/1219857
cvssv3.1 8.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
ssvc Attend https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
cvssv3.1 8.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
ssvc Attend https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30554
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30554
archlinux High https://security.archlinux.org/AVG-2081
archlinux High https://security.archlinux.org/AVG-2082
cvssv3.1 8.8 https://security.gentoo.org/glsa/202107-06
ssvc Attend https://security.gentoo.org/glsa/202107-06
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-30554
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30554
1219857 https://crbug.com/1219857
202107-06 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
AVG-2081 https://security.archlinux.org/AVG-2081
AVG-2082 https://security.archlinux.org/AVG-2082
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-2021-30554 https://nvd.nist.gov/vuln/detail/CVE-2021-30554
ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
stable-channel-update-for-desktop_17.html https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html
Data source KEV
Date added Nov. 3, 2021
Description Google Chromium WebGL contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Required action Apply updates per vendor instructions.
Due date Nov. 17, 2021
Note 
https://nvd.nist.gov/vuln/detail/CVE-2021-30554
Ransomware campaign use Unknown
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/2021/06/stable-channel-update-for-desktop_17.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: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-04T15:07:15Z/ Found at https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://crbug.com/1219857
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: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-04T15:07:15Z/ Found at https://crbug.com/1219857
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
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: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-04T15:07:15Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
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: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-04T15:07:15Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30554
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-2021-30554
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://security.gentoo.org/glsa/202107-06
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: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-04T15:07:15Z/ Found at https://security.gentoo.org/glsa/202107-06
Exploit Prediction Scoring System (EPSS)
Percentile 0.95896
EPSS Score 0.24629
Published At Aug. 12, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:28:51.248409+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.15/community.json 37.0.0