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VulnerabilityPublished Updated

CVE-2025-13720: Google Chrome · Bad Cast

Affects Google ChromeSource CVE Database V5

0

Not known to be exploited · CVSS 8.8 High : upgrade to 143.0.7499.41 soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 143.0.7499.41
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 2 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade Google Chrome to 143.0.7499.41.

Affected software

ProductAffectedFixed in
Google ChromeAffected
  • =143.0.7499.41
  • <143.0.7499.41
Fixed in
  • 143.0.7499.41

AI-suggested

To mitigate CVE-2025-13720, organizations should immediately update all Google Chrome installations to version 143.0.7499.41 or later, where the vulnerability is patched. Beyond patching, implement strict browser security policies such as disabling or restricting JavaScript execution from untrusted sources, employing Content Security Policy (CSP) headers to limit the impact of malicious HTML content, and using browser isolation technologies to contain potential compromises. Monitoring and logging renderer process behavior can help detect anomalous activity indicative of exploitation attempts. Employ endpoint detection and response (EDR) solutions capable of identifying heap corruption or unusual memory operations. User education to recognize phishing and suspicious links is critical to reduce the likelihood of user interaction with malicious content. Additionally, consider deploying network-level protections such as web filtering and sandboxing to intercept malicious web content before it reaches end users. Regularly review and update incident response plans to include browser-based exploit scenarios.

Description

Bad cast in Loader in Google Chrome prior to 143.0.7499.41 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

References

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