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Vulnerability details: VCID-qaft-n356-tugs
Vulnerability ID VCID-qaft-n356-tugs
Aliases CVE-2021-21148
Summary Multiple vulnerabilities have been found in Chromium and Google Chrome, the worst of which could result in the arbitrary execution of code.
Status Published
Exploitability 2.0
Weighted Severity 9.0
Risk 10.0
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 8.8 http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
ssvc Attend http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
epss 0.24871 https://api.first.org/data/v1/epss?cve=CVE-2021-21148
cvssv3.1 8.8 https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html
ssvc Attend https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html
cvssv3.1 8.8 https://crbug.com/1170176
ssvc Attend https://crbug.com/1170176
cvssv3.1 8.8 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 8.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
ssvc Attend https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
cvssv3.1 8.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
ssvc Attend https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
archlinux Critical https://security.archlinux.org/AVG-1478
archlinux Critical https://security.archlinux.org/AVG-1525
cvssv3.1 8.8 https://security.gentoo.org/glsa/202104-08
ssvc Attend https://security.gentoo.org/glsa/202104-08
cvssv3.1 8.8 https://www.debian.org/security/2021/dsa-4858
ssvc Attend https://www.debian.org/security/2021/dsa-4858
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-21148
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21148
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21149
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21150
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21151
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21152
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21153
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21154
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21155
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21156
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21157
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1170176 https://crbug.com/1170176
7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
ASA-202102-4 https://security.archlinux.org/ASA-202102-4
ASA-202102-6 https://security.archlinux.org/ASA-202102-6
AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
AVG-1478 https://security.archlinux.org/AVG-1478
AVG-1525 https://security.archlinux.org/AVG-1525
Chrome-Array-Transfer-Bypass.html http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
dsa-4858 https://www.debian.org/security/2021/dsa-4858
GLSA-202104-08 https://security.gentoo.org/glsa/202104-08
stable-channel-update-for-desktop_4.html https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html
Data source KEV
Date added Nov. 3, 2021
Description Google Chromium V8 Engine contains a heap buffer overflow 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-2021-21148
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 http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.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/2025-01-29T16:55:23Z/ Found at http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
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/2021/02/stable-channel-update-for-desktop_4.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/2025-01-29T16:55:23Z/ Found at https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.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/1170176
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/2025-01-29T16:55:23Z/ Found at https://crbug.com/1170176
Vector: CVSS:3.1/AV:N/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: 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/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
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/2025-01-29T16:55:23Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
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/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
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/2025-01-29T16:55:23Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
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/202104-08
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/2025-01-29T16:55:23Z/ Found at https://security.gentoo.org/glsa/202104-08
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://www.debian.org/security/2021/dsa-4858
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/2025-01-29T16:55:23Z/ Found at https://www.debian.org/security/2021/dsa-4858
Exploit Prediction Scoring System (EPSS)
Percentile 0.96119
EPSS Score 0.24871
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:14:35.604136+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/202104-08 38.0.0