Out-of-bounds write in Google Chrome
Priority MEDIUM 40CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Out of bounds write in Tab Strip in Google Chrome prior to 90.0.4430.212 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory write via a crafted HTML page and a crafted Chrome extension.
Why it matters now
EPSS 0.00824 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Chrome (Google): 90.0.4430.212
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Chrome | before 90.0.4430.212 | 90.0.4430.212 | Patch available | CNA |
- Chrome VendorGoogle Affected before 90.0.4430.212 Fixed in 90.0.4430.212 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* | before 90.0.4430.212 | Vulnerable | |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 90.0.4430.212 Vulnerable ·Google
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA Chrome (Google) Fixed in 90.0.4430.212
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 90.0.4430.212
15 records Highest priority Priority MEDIUM 14 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2021-10912 Type confusion in Google ChromePriority MEDIUM 43
- TI-2021-10908 Type confusion in Google ChromePriority MEDIUM 42
- TI-2021-10913 Out-of-bounds write in Google ChromePriority MEDIUM 41
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30509
- 2026-10-03 Alias added: GHSA-v6rx-85h6-26mf
References
More Google Chrome vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2021-30509 · CVE Program
- CVE-2021-30509 · NVD
- FIRST EPSS
- GHSA-v6rx-85h6-26mf · GitHub Advisory Database · CC BY 4.0
- CVE-2021-30509 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences