CVE-2021-30563 KEV
8.8
HIGH · CVSS 3.1 · EPSS 8.9% (pctl 95)
Patch first
On CISA KEV — known exploited in the wild, due 2021-11-17.
Description
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 8.93% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-843 |
| On CISA KEV | yes — remediate by 2021-11-17 |
| Public exploit | none known |
| Published | 2021-08-03 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Google Chromium V8 Type Confusion Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2021-11-17 |
| Vendor / product | Google / Chromium V8 |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| chrome |
References
- https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
- https://crbug.com/1228407
- https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html
- https://crbug.com/1228407
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30563
→ the Explorer · watch your stack · NVD