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Vulnerability IntelligenceCVE-2021-30633

CVE-2021-30633

CRITICAL9.6

Use after free in Indexed DB API in Google Chrome prior to 93

Published Oct 8, 2021

Modified 4 months ago

Fix available

Details

Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Affected Packages

Google Chrome

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

93.0.4577.82

References

WEB

https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html

WEB

https://crbug.com/1247766

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

WEB

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30633

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2021-30633

CVSS Analysis

CVSS v3.1

9.6

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

ChangedS:C

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

9.6/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Ecosystems(20)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1809) / Server 2019 Windows 10 (1903)Windows 10 (1909)

Timeline

PublishedOct 8, 2021

ModifiedOct 21, 2025

CVE-2021-30633 | Mondoo Vulnerability Intelligence