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CVE-2021-30632

Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to...

8.8 HighIn KEVPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

63.2%Up 58.7 points since Oct 9, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

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.

Record
CVE-2021-30632
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List 8.8

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.

Record
CVE-2021-30632
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
EUVDEUVD-2021-17552 8.8

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.

Record
EUVD-2021-17552
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-38c8-mw66-j237 8.8

Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to...

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.

Record
GHSA-38c8-mw66-j237
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
CISA KEV No score

Google Chromium V8 Out-of-Bounds Write Vulnerability

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.

Record
CVE-2021-30632
Weakness
CWE-122
Updated
2026-11-02
OSVALPINE-CVE-2021-30632 8.8

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.

Record
ALPINE-CVE-2021-30632
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-03
Show 11 moreShow less
OSV 8.8

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.

Record
CVE-2021-30632
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2021-30632 8.8

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.

Record
DEBIAN-CVE-2021-30632
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2021-30632 8.8

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.

Record
UBUNTU-CVE-2021-30632
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2021:1300-1 No score

Security update for chromium

This update for chromium fixes the following issues:

Chromium 93.0.4577.63 (boo#1190096):

  • CVE-2021-30606: Use after free in Blink
  • CVE-2021-30607: Use after free in Permissions
  • CVE-2021-30608: Use after free in Web Share
  • CVE-2021-30609: Use after free in Sign-In
  • CVE-2021-30610: Use after free in Extensions API
  • CVE-2021-30611: Use after free in WebRTC
  • CVE-2021-30612: Use after free in WebRTC
  • CVE-2021-30613: Use after free in Base internals
  • CVE-2021-30614: Heap buffer overflow in TabStrip
  • CVE-2021-30615: Cross-origin data leak in Navigation
  • CVE-2021-30616: Use after free in Media
  • CVE-2021-30617: Policy bypass in Blink
  • CVE-2021-30618: Inappropriate implementation in DevTools
  • CVE-2021-30619: UI Spoofing in Autofill
  • CVE-2021-30620: Insufficient policy enforcement in Blink
  • CVE-2021-30621: UI Spoofing in Autofill
  • CVE-2021-30622: Use after free in WebApp Installs
  • CVE-2021-30623: Use after free in Bookmarks
  • CVE-2021-30624: Use after free in Autofill

Chromium 93.0.4577.82 (boo#1190476):

  • CVE-2021-30625: Use after free in Selection API
  • CVE-2021-30626: Out of bounds memory access in ANGLE
  • CVE-2021-30627: Type Confusion in Blink layout
  • CVE-2021-30628: Stack buffer overflow in ANGLE
  • CVE-2021-30629: Use after free in Permissions
  • CVE-2021-30630: Inappropriate implementation in Blink
  • CVE-2021-30631: Type Confusion in Blink layout
  • CVE-2021-30632: Out of bounds write in V8
  • CVE-2021-30633: Use after free in Indexed DB API
Record
openSUSE-SU-2021:1300-1
Updated
2026-11-02
OSVopenSUSE-SU-2021:1303-1 No score

Security update for chromium

This update for chromium fixes the following issues:

Chromium 93.0.4577.63 (boo#1190096):

  • CVE-2021-30606: Use after free in Blink
  • CVE-2021-30607: Use after free in Permissions
  • CVE-2021-30608: Use after free in Web Share
  • CVE-2021-30609: Use after free in Sign-In
  • CVE-2021-30610: Use after free in Extensions API
  • CVE-2021-30611: Use after free in WebRTC
  • CVE-2021-30612: Use after free in WebRTC
  • CVE-2021-30613: Use after free in Base internals
  • CVE-2021-30614: Heap buffer overflow in TabStrip
  • CVE-2021-30615: Cross-origin data leak in Navigation
  • CVE-2021-30616: Use after free in Media
  • CVE-2021-30617: Policy bypass in Blink
  • CVE-2021-30618: Inappropriate implementation in DevTools
  • CVE-2021-30619: UI Spoofing in Autofill
  • CVE-2021-30620: Insufficient policy enforcement in Blink
  • CVE-2021-30621: UI Spoofing in Autofill
  • CVE-2021-30622: Use after free in WebApp Installs
  • CVE-2021-30623: Use after free in Bookmarks
  • CVE-2021-30624: Use after free in Autofill

Chromium 93.0.4577.82 (boo#1190476):

  • CVE-2021-30625: Use after free in Selection API
  • CVE-2021-30626: Out of bounds memory access in ANGLE
  • CVE-2021-30627: Type Confusion in Blink layout
  • CVE-2021-30628: Stack buffer overflow in ANGLE
  • CVE-2021-30629: Use after free in Permissions
  • CVE-2021-30630: Inappropriate implementation in Blink
  • CVE-2021-30631: Type Confusion in Blink layout
  • CVE-2021-30632: Out of bounds write in V8
  • CVE-2021-30633: Use after free in Indexed DB API
Record
openSUSE-SU-2021:1303-1
Updated
2026-11-02
OSVopenSUSE-SU-2021:1330-1 No score

Security update for opera

This update for opera fixes the following issues:

Opera was updated to version 79.0.4143.50

  • CHR-8571 Update chromium on desktop-stable-93-4143 to 93.0.4577.82
  • DNA-94104 ContinueShoppingOnEbayBrowserTest.ShouldDisplayOffers TilesStartingWithMostActiveOnes fails
  • DNA-94894 [Rich Hint] Agent API permissions
  • DNA-94989 Wrong color and appearance of subpages in the settings
  • DNA-95241 “Switch to tab” button is visible only on hover
  • DNA-95286 Add unit tests to pinboard sync related logic in browser
  • DNA-95372 [Mac retina screen] Snapshot doesnt capture cropped area
  • DNA-95526 Some webstore extensions are not verified properly
  • The update to chromium 93.0.4577.82 fixes following issues: CVE-2021-30625, CVE-2021-30626, CVE-2021-30627, CVE-2021-30628, CVE-2021-30629, CVE-2021-30630, CVE-2021-30631, CVE-2021-30632, CVE-2021-30633
Record
openSUSE-SU-2021:1330-1
Updated
2026-11-02
OSVopenSUSE-SU-2022:0070-1 No score

Security update for nodejs-electron

This update for nodejs-electron fixes the following issues:

  • Fix webpack-4 with OpenSSL 3.0

Update to version 16.0.9

Update to version 16.0.8

Record
openSUSE-SU-2022:0070-1
Updated
2026-11-02
OSVopenSUSE-SU-2022:0110-1 No score

Security update for opera

This update for opera fixes the following issues:

Update to 85.0.4341.28

  • CHR-8816 Update chromium on desktop-stable-99-4341 to 99.0.4844.84

  • DNA-98092 Crash at views::MenuItemView::GetMenuController()

  • DNA-98278 Translations for O85

  • DNA-98320 [Mac] Unable to delete recent search entries

  • DNA-98614 Show recent searches for non-BABE users

  • DNA-98615 Allow removal of recent searches

  • DNA-98616 Add recent searches to ‘old’ BABE

  • DNA-98617 Make it possible to disable ad-blocker per-country

  • DNA-98651 Remove Instagram and Facebook Messenger in Russia

  • DNA-98653 Add flag #recent-searches

  • DNA-98696 smoketest PageInfoHistoryDataSourceTest.FormatTimestampString failing

  • DNA-98703 Port Chromium issue 1309225 to Opera Stable

  • The update to chromium 99.0.4844.84 fixes following issues:
    CVE-2022-1096

  • Changes in 85.0.4341.18

    • CHR-8789 Update chromium on desktop-stable-99-4341 to 99.0.4844.51
    • DNA-98059 [Linux] Crash at opera::FreedomSettingsImpl::IsBypassForDotlessDomainsEnabled
    • DNA-98349 [Linux] Crash at bluez::BluezDBusManager::Get()
    • DNA-98126 System crash dialog shown on macOS <= 10.15
    • DNA-98331 [Snap] Meme generator cropping / resizing broken
    • DNA-98394 Audio tab indicator set to 'muted' on videoconferencing sites
    • DNA-98481 Report errors in opauto_collector
  • The update to chromium 99.0.4844.51 fixes following issues: CVE-2022-0789, CVE-2022-0790, CVE-2022-0791, CVE-2022-0792, CVE-2022-0793, CVE-2022-0794, CVE-2022-0795, CVE-2022-0796, CVE-2022-0797, CVE-2022-0798, CVE-2022-0799, CVE-2022-0800, CVE-2022-0801, CVE-2022-0802, CVE-2022-0803, CVE-2022-0804, CVE-2022-0805, CVE-2022-0806, CVE-2022-0807, CVE-2022-0808, CVE-2022-0809

  • Changes in 85.0.4341.13

    • DNA-94119 Upgrade curl to 7.81.0
    • DNA-97849 [Mac monterey] System shortcut interfere with Opera’s ToggleSearchInOpenTabs shortcut
    • DNA-98204 Automatic popout happens when video is paused
    • DNA-98231 Shortcuts are blocked by displayed tab tooltip when triggered quickly after tooltip appears
    • DNA-98321 Add thinlto-cache warnings to suppression list
    • DNA-98395 Promote O85 to stable
  • Complete Opera 85.0 changelog at: https://blogs.opera.com/desktop/changelog-for-85/

  • Update to 84.0.4316.42

    • DNA-94119 Upgrade curl to 7.81.0
    • DNA-98092 Crash at views::MenuItemView::GetMenuController()
    • DNA-98204 Automatic popout happens when video is paused
    • DNA-98231 Shortcuts are blocked by displayed tab tooltip when triggered quickly after tooltip appears
  • Update to 84.0.4316.31

    • CHR-8772 Update chromium on desktop-stable-98-4316 to 98.0.4758.109
    • DNA-97573 [Win][Lin]”Close tab” button is not displayed on tabs playing media when many tabs are open
    • DNA-97729 cancelling the process uploading custom Wallpaper crashes the browser
    • DNA-97871 Google meet tab’s icons don’t fit on pinned tab
    • DNA-97872 Tab is being unpinned when video conferencing button is clicked
    • DNA-98039 Dark theme top sites have black background
    • DNA-98117 Clicking current tab information should hide tooltip
  • Update to 84.0.4316.21

    • CHR-8762 Update chromium on desktop-stable-98-4316 to 98.0.4758.102
    • DNA-97333 ‘Add a site’ label on start page tile barely visible
    • DNA-97691 Opera 84 translations
    • DNA-97767 Wrong string in FR
    • DNA-97855 Crash at ScopedProfileKeepAlive::~ScopedProfileKeepAlive()
    • DNA-97982 Enable #snap-upstream-implementation on all streams
  • The update to chromium 98.0.4758.102 fixes following issues: CVE-2022-0603, CVE-2022-0604, CVE-2022-0605, CVE-2022-0606, CVE-2022-0607, CVE-2022-0608, CVE-2022-0609, CVE-2022-0610

  • Update to 84.0.4316.14

    • CHR-8753 Update chromium on desktop-stable-98-4316 to 98.0.4758.82
    • DNA-97177 Battery saver – the icon looks bad for DPI!=100%
    • DNA-97614 automatic video pop-out for most popular websites broadcasting Winter Olympic Games…
Record
openSUSE-SU-2022:0110-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:10681-1 No score

chromedriver-93.0.4577.82-1.1 on GA media

These are all security issues fixed in the chromedriver-93.0.4577.82-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10681-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11550-1 No score

nodejs-electron-13.5.0-1.1 on GA media

These are all security issues fixed in the nodejs-electron-13.5.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11550-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:12948-1 No score

ungoogled-chromium-113.0.5672.92-1.1 on GA media

These are all security issues fixed in the ungoogled-chromium-113.0.5672.92-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:12948-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
chromium
Alpine:v3.14
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.15
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.16
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.17
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.18
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.19
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.20
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.21
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.22
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Alpine:v3.23
before 93.0.4577.82-r0
93.0.4577.82-r0
Show 16 moreShow less
Affected packages
PackageAffectedFixed
chromium
Alpine:v3.24
before 93.0.4577.82-r0
93.0.4577.82-r0
chromium
Debian:12
before 93.0.4577.82-1
93.0.4577.82-1
chromium
Debian:13
before 93.0.4577.82-1
93.0.4577.82-1
chromium
Debian:14
before 93.0.4577.82-1
93.0.4577.82-1
chromium-browser
Ubuntu:18.04:LTS
before 94.0.4606.71-0ubuntu0.18.04.1, plus listed versions
61.0.3163.100-0ubuntu1.137862.0.3202.62-0ubuntu0.17.10.138062.0.3202.89-0ubuntu1.138662.0.3202.94-0ubuntu1.138863.0.3239.84-0ubuntu1
Show 45 moreShow less
63.0.3239.108-0ubuntu164.0.3282.119-0ubuntu164.0.3282.140-0ubuntu164.0.3282.167-0ubuntu165.0.3325.146-0ubuntu165.0.3325.181-0ubuntu166.0.3359.139-0ubuntu0.18.04.366.0.3359.181-0ubuntu0.18.04.167.0.3396.99-0ubuntu0.18.04.168.0.3440.75-0ubuntu0.18.04.168.0.3440.106-0ubuntu0.18.04.169.0.3497.81-0ubuntu0.18.04.170.0.3538.67-0ubuntu0.18.04.170.0.3538.77-0ubuntu0.18.04.170.0.3538.110-0ubuntu0.18.04.171.0.3578.80-0ubuntu0.18.04.171.0.3578.98-0ubuntu0.18.04.172.0.3626.119-0ubuntu0.18.04.172.0.3626.121-0ubuntu0.18.04.173.0.3683.75-0ubuntu0.18.04.173.0.3683.86-0ubuntu0.18.04.174.0.3729.169-0ubuntu0.18.04.175.0.3770.90-0ubuntu0.18.04.175.0.3770.142-0ubuntu0.18.04.176.0.3809.87-0ubuntu0.18.04.176.0.3809.100-0ubuntu0.18.04.177.0.3865.90-0ubuntu0.18.04.178.0.3904.70-0ubuntu0.18.04.278.0.3904.97-0ubuntu0.18.04.178.0.3904.108-0ubuntu0.18.04.179.0.3945.79-0ubuntu0.18.04.179.0.3945.130-0ubuntu0.18.04.180.0.3987.87-0ubuntu0.18.04.180.0.3987.149-0ubuntu0.18.04.180.0.3987.163-0ubuntu0.18.04.181.0.4044.122-0ubuntu0.18.04.181.0.4044.138-0ubuntu0.18.04.183.0.4103.61-0ubuntu0.18.04.184.0.4147.105-0ubuntu0.18.04.185.0.4183.83-0ubuntu0.18.04.285.0.4183.121-0ubuntu0.18.04.186.0.4240.75-0ubuntu0.18.04.186.0.4240.198-0ubuntu0.18.04.187.0.4280.66-0ubuntu0.18.04.189.0.4389.82-0ubuntu0.18.04.1
94.0.4606.71-0ubuntu0.18.04.1
chromium
SUSE:Package Hub 15 SP3
From an advisory covering 28 CVEs
before 93.0.4577.82-bp153.2.28.1
93.0.4577.82-bp153.2.28.1
chromium
openSUSE:Leap 15.3
From an advisory covering 28 CVEs
before 93.0.4577.82-bp153.2.28.1
93.0.4577.82-bp153.2.28.1
chromium
openSUSE:Leap 15.2
From an advisory covering 28 CVEs
before 93.0.4577.82-lp152.2.125.1
93.0.4577.82-lp152.2.125.1
opera
openSUSE:Leap 15.2 NonFree
From an advisory covering 9 CVEs
before 79.0.4143.50-lp153.2.21.1
79.0.4143.50-lp153.2.21.1
opera
openSUSE:Leap 15.3 NonFree
From an advisory covering 9 CVEs
before 79.0.4143.50-lp153.2.21.1
79.0.4143.50-lp153.2.21.1
nodejs-electron
SUSE:Package Hub 15 SP3
From an advisory covering 18 CVEs
before 16.0.9-bp153.2.1
16.0.9-bp153.2.1
nodejs-electron
openSUSE:Leap 15.3
From an advisory covering 18 CVEs
before 16.0.9-bp153.2.1
16.0.9-bp153.2.1
opera
openSUSE:Leap 15.4 NonFree
From an advisory covering 241 CVEs
before 85.0.4341.28-lp154.2.5.1
85.0.4341.28-lp154.2.5.1
chromium
openSUSE:Tumbleweed
From an advisory covering 1081 CVEs
before 93.0.4577.82-1.1
93.0.4577.82-1.1
nodejs-electron
openSUSE:Tumbleweed
From an advisory covering 8 CVEs
before 13.5.0-1.1
13.5.0-1.1
chromium
openSUSE:Tumbleweed
From an advisory covering 2310 CVEs
before 113.0.5672.92-1.1
113.0.5672.92-1.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubCrackerCat/CVE-2021-306322021-09-28
PoC in GitHubmaldev866/ChExp_CVE-2021-306322023-03-21
PoC in GitHubpaulsery/CVE-2021-306322024-01-31

History

History
RecordedChangedSources
affected
exploitation
affected, aliases, referencesOSV
first indexedCVE List, EUVD, GitHub Advisories, CISA KEV, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-30632 is a high vulnerability (CVSS 8.8) in Google Chrome, published September 21, 2021. CISA lists it as known to be exploited, since November 3, 2021. EUVD reports exploitation since November 3, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 63.2%, the 99th percentile. Fixed in chromium 93.0.4577.82-r0.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 7 versions, 2,134 references and the rest of 1 source description. The JSON record has them.

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