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| Vulnerability ID | VCID-fxgu-ragu-r7cw |
| Aliases |
CVE-2021-30563
|
| Summary | Type Confusion in V8 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 | 2.0 |
| Weighted Severity | 8.0 |
| Risk | 10.0 |
| Affected and Fixed Packages | Package Details |
| Reference id | Reference type | URL |
|---|---|---|
| https://api.first.org/data/v1/epss?cve=CVE-2021-30563 | ||
| https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html | ||
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30563 | ||
| 1228407 | https://crbug.com/1228407 | |
| 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-2021-30563 | https://nvd.nist.gov/vuln/detail/CVE-2021-30563 |
| Data source | KEV |
|---|---|
| Date added | Nov. 3, 2021 |
| Description | Google Chromium V8 Engine contains a type confusion 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-2021-30563 |
| Ransomware campaign use | Unknown |
| 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 |
| 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 |
| 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 |
| 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 |
| Percentile | 0.88732 |
| EPSS Score | 0.04532 |
| Published At | Sept. 23, 2025, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2025-07-31T08:29:46.481386+00:00 | Alpine Linux Importer | Import | https://secdb.alpinelinux.org/v3.18/community.json | 37.0.0 |