8.8
High
Exploited
CVE-2021-21148 Google Chromium V8 Heap Buffer Overflow Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Not observed so far
Weakness
CWE-122
Description
Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Chrome 88.0 | earliest → < 88.0.4324.150 | 88.0.4324.150 |
References
- crbug.com crbug.com
- chromereleases.googleblog.com chromereleases.googleblog.com
- FEDORA-2021-05afa65d39 lists.fedoraproject.org
- FEDORA-2021-7fb30b9381 lists.fedoraproject.org
- DSA-4858 www.debian.org
- GLSA-202104-08 security.gentoo.org
- packetstormsecurity.com packetstormsecurity.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified
Other CVEs of Chrome
The 6072 CVEs of Chrome →
CVE-2026-120930
Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web…
5.4
Medium
CVE-2026-120931
Out of bounds write in WebGL in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to…
9.6
Critical
CVE-2026-121141
Improper input validation in Editing in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social…
5.4
Medium
CVE-2026-121195
Incorrect authorization in TrustedTypes in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass…
8.8
High