CVE-2021-30551 in Google and Fedora Project Products
Published on June 15, 2021
Known Exploited Vulnerability
This Chromium V8 Type Confusion Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Type confusion in V8 in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2021-30551 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2021-30551 has been classified to as an Object Type Confusion vulnerability or weakness.
Products Associated with CVE-2021-30551
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Affected Versions
Google Chrome:- Version unspecified and below 91.0.4472.101 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.