Google Chrome V8 Type Confusion Heap Corruption
Actively exploited in the wild. Patch or mitigate immediately — don't wait for a maintenance window.
An unauthenticated attacker, remotely over the network, with no user interaction, can fully compromise the system — steal data, tamper with it and take it offline.
Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Inferred from the weakness type (CWE) and how the flaw is reached — the techniques an attacker would chain to exploit this. Real-world corroboration appears here as threat intel is folded in.
Corroborated threat activity referencing this CVE — with source and confidence, not inference.
Named threat actors and observed ATT&CK techniques appear here as intel feeds are folded in — the ATT&CK chain above stays inferred until then.
Generated by Wavense from the CVE record — an immediate mitigation and the permanent fix.
Until a patch can be applied, users should exercise extreme caution when browsing untrusted websites or opening suspicious links. Employ robust web filtering and enforce strict browser security settings, such as script blockers, to reduce exposure to malicious content. Additionally, consider using a less vulnerable browser for critical tasks if immediate patching is not feasible.
The permanent resolution is to upgrade Google Chrome to version 140.0.7339.185 or later. This update contains the necessary fix for the type confusion vulnerability in the V8 engine, preventing exploitation via specially crafted HTML pages. Ensure all end-user workstations and servers running Chrome are promptly updated to eliminate this critical risk.
Attackers can exploit this type confusion vulnerability in the V8 JavaScript engine to achieve heap corruption. This could lead to arbitrary code execution within the browser's sandbox, potentially allowing for data exfiltration, system compromise, or further network penetration. The business consequences include severe reputational damage, financial loss from data breaches, and potential regulatory non-compliance.
Other CVEs affecting chrome
Integer underflow in Adobe Flash Player before 11.7.700.261 and 11.8.x through 12.0.x before 12.0.0.44 on Windows and Mac OS X, and before 11.2.202.336 on Linux, allows remote attackers to execute arbitrary code via unspecified vectors.
Type confusion in V8 in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Type Confusion in V8 in Google Chrome prior to 125.0.6422.112 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Type Confusion in V8 in Google Chrome prior to 125.0.6422.60 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
Use after free in Visuals in Google Chrome prior to 124.0.6367.201 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Integer overflow in Skia in Google Chrome prior to 119.0.6045.199 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)