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Vulnerability details: VCID-cds7-r9q7-pff1
Vulnerability ID VCID-cds7-r9q7-pff1
Aliases CVE-2021-30632
Summary Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 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-787 Out-of-bounds Write
System Score Found at
cvssv3.1 8.8 http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html
ssvc Attend http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html
epss 0.84245 https://api.first.org/data/v1/epss?cve=CVE-2021-30632
epss 0.84245 https://api.first.org/data/v1/epss?cve=CVE-2021-30632
epss 0.84245 https://api.first.org/data/v1/epss?cve=CVE-2021-30632
epss 0.84245 https://api.first.org/data/v1/epss?cve=CVE-2021-30632
epss 0.84245 https://api.first.org/data/v1/epss?cve=CVE-2021-30632
epss 0.84245 https://api.first.org/data/v1/epss?cve=CVE-2021-30632
cvssv3.1 8.8 https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
ssvc Attend https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
cvssv3.1 8.8 https://crbug.com/1247763
ssvc Attend https://crbug.com/1247763
cvssv3.1 8.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
ssvc Attend https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
cvssv3.1 8.8 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
ssvc Attend https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30632
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2021-30632
archlinux High https://security.archlinux.org/AVG-2337
archlinux High https://security.archlinux.org/AVG-2379
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-30632
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30632
1247763 https://crbug.com/1247763
4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
ASA-202109-6 https://security.archlinux.org/ASA-202109-6
AVG-2337 https://security.archlinux.org/AVG-2337
AVG-2379 https://security.archlinux.org/AVG-2379
Chrome-JIT-Compiler-Type-Confusion.html http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.html
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:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2021-30632 https://nvd.nist.gov/vuln/detail/CVE-2021-30632
PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
stable-channel-update-for-desktop.html https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
Data source KEV
Date added Nov. 3, 2021
Description Google Chromium V8 Engine contains an out-of-bounds write 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-2021-30632
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/172845/Chrome-JIT-Compiler-Type-Confusion.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/2025-01-29T16:52:08Z/ Found at http://packetstormsecurity.com/files/172845/Chrome-JIT-Compiler-Type-Confusion.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/2021/09/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: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-01-29T16:52:08Z/ Found at https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.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/1247763
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/2025-01-29T16:52:08Z/ Found at https://crbug.com/1247763
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/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
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/2025-01-29T16:52:08Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
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/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
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/2025-01-29T16:52:08Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30632
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-2021-30632
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 0.99263
EPSS Score 0.84245
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:35:55.969586+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.21/community.json 37.0.0