Actively exploited · Published Aug 3, 2021 · Assigned by Chrome
CVE-2021-30563
High 8.8 Exploited
In plain English
A high-severity type confusion in Chrome from Google. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 9.0% (higher than 95% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)9.0%top 4.7% of all CVEs
Exploited in the wildYesCISA KEV since Nov 3, 2021
Attack toolingNoneno public tooling known
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Nov 17, 2021.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | chromium | 91.0.4472.164-r0 | ALPINE-CVE-2021-30563 |
| Alpine:v3.21 | chromium | 91.0.4472.164-r0 | ALPINE-CVE-2021-30563 |
| Alpine:v3.22 | chromium | 91.0.4472.164-r0 | ALPINE-CVE-2021-30563 |
| Alpine:v3.23 | chromium | 91.0.4472.164-r0 | ALPINE-CVE-2021-30563 |
| Alpine:v3.24 | chromium | 91.0.4472.164-r0 | ALPINE-CVE-2021-30563 |
| Alpine:v3.20 | qt5-qtwebengine | 5.15.3_git20210510-r4 | ALPINE-CVE-2021-30563 |
| Alpine:v3.21 | qt5-qtwebengine | 5.15.3_git20210510-r4 | ALPINE-CVE-2021-30563 |
| Alpine:v3.22 | qt5-qtwebengine | 5.15.3_git20210510-r4 | ALPINE-CVE-2021-30563 |
| Alpine:v3.23 | qt5-qtwebengine | 5.15.3_git20210510-r4 | ALPINE-CVE-2021-30563 |
| Debian:12 | chromium | 93.0.4577.82-1 | DEBIAN-CVE-2021-30563 |
| Debian:13 | chromium | 93.0.4577.82-1 | DEBIAN-CVE-2021-30563 |
| Debian:14 | chromium | 93.0.4577.82-1 | DEBIAN-CVE-2021-30563 |
Affected products (as reported)
Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html x_refsource_MISC
- https://crbug.com/1228407 x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30563 government-resource