CVE-2021-30633
Google Chromium Indexed DB API Use-After-Free Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Chromium Indexed DB API, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Nov 17, 2021.
Patch status
No official fix confirmed yet
Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.
Description
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| Chrome | < 93.0.4577.82 | 93.0.4577.82 | NVD | |
| Chromium Indexed DB API | — | — | KEV |
Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2021-30633 scored CVSS 9.6: Google Chromium Indexed DB API, Google Chromium Indexed DB API Use-After-Free Vulnerability
CISA lists this as exploited in the wild. Unpatched Chromium Indexed DB API systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
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Coverage
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