Disclosed
CVE-2026-9123
Heap buffer overflow in Chromecast in Google Chrome on Android, Linux, ChromeOS prior to 148.0.7778.179 allowed a local attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: Medium)
Exploitation Probability (EPSS)
Low Priority0.00%
The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.
0% (Theoretical)100% (Certainty)
7-Day Exploitation Trend
Vulnerability Timeline
2 eventsMay 20, 2026
Vulnerability Disclosed
Published to component-level vulnerability database.
May 21, 2026
Last Updated
Record updated with new analysis or tags.
Threat Actor Attribution
PREMIUM INTELAssociated Groups:Lazarus Group, APT28
Ransomware Campaigns:LockBit 3.0, BlackCat
IoCs (Indicators):14 IPs, 3 Hashes
Remediation & Mitigation
SOLUTIONOfficial patches and mitigation steps are available for this vulnerability.
# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name
Affected Products
4 Total
google/chromeAll Versions
google/android-
google/chrome_os-
linux/linux_kernel-
Am I Vulnerable?
Check your domain or package.json for CVE-2026-9123 exposure.
Vulnerability Details
CVSS Base Score
7.5/ 10
Vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published Date
May 20, 2026
Last Modified
May 21, 2026
Need Manual Validation?
Automated scanners flag false positives. Get a manual pentest validation for this CVE.