Heap Corruption Vulnerability in Google Chrome
CVE-2021-38003

8.8HIGH

Key Information:

Vendor

Google

Status
Vendor
CVE Published:
23 November 2021

Badges

πŸ‘Ύ Exploit Exists🟑 Public PoC🟣 EPSS 38%πŸ¦… CISA Reported

What is CVE-2021-38003?

A vulnerability in the V8 engine of Google Chrome allows remote attackers to potentially exploit heap corruption through specially crafted HTML pages. This issue emerges from an inappropriate implementation within the V8 framework, which can lead to unexpected behavior when processing malicious content. Users are encouraged to update their browsers to mitigate potential risks related to this vulnerability.

CISA has reported CVE-2021-38003

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2021-38003 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

Affected Version(s)

Chrome < 95.0.4638.69

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

EPSS Score

38% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟑

    Public PoC available

  • Vulnerability published

  • πŸ‘Ύ

    Exploit known to exist

  • πŸ¦…

    CISA Reported

  • Vulnerability Reserved

.