CVE-2018-17480VulnerabilityPublished 06/08/2022Updated 10/24/2026

CVE-2018-17480: Google Chromium V8 Out-of-Bounds Write Vulnerability

Affects Google Chromium V8Source CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 06/08/2022
KEV deadline: 06/22/2022
EPSS: 35.6% chance of exploitation in 30 days – higher than 98% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2018-17480 (opens in a new tab)

Description

CVE-2018-17480 is an out-of-bounds write vulnerability in the Google Chromium V8 JavaScript engine. This flaw allows a remote attacker to execute code within the sandbox environment by delivering a specially crafted HTML page. Multiple Chromium-based browsers, including Google Chrome, Microsoft Edge, and Opera, may be affected. Exploitation of this vulnerability has been observed in the wild. No specific affected versions or patch information is provided in the available data.

Summary

The vulnerability identified as CVE-2018-17480 exists in the Chromium V8 engine and involves an out-of-bounds write condition. This memory corruption flaw enables remote code execution inside the sandbox when a user visits a maliciously crafted HTML page. Because V8 is used by several Chromium-based browsers, the vulnerability potentially impacts multiple widely used browsers. The vulnerability is tracked under CWE-787 (Out-of-bounds Write). Exploits have been observed in the wild, indicating active threat usage. However, no explicit patch or remediation details are provided in the input data.

Impact

Successful exploitation allows remote attackers to execute arbitrary code within the sandboxed environment of the browser, potentially leading to compromise of the affected system or user data. The vulnerability affects multiple Chromium-based browsers, increasing the attack surface. Known exploitation in the wild confirms active threat usage.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users and administrators should monitor official Google Chromium security advisories for updates and apply patches promptly once available. Until a fix is applied, consider limiting exposure to untrusted web content.

Weaknesses

CWE-787Out-of-bounds Write (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 12:04:34 UTC

Weaknesses

References

Related threats