HIGH · 7.5

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 traffi...

Vulnerability Description

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)

CVSS Score

7.5

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
GoogleChrome< 148.0.7778.179
GoogleAndroid-
GoogleChrome Os-
LinuxLinux Kernel-

Related Weaknesses (CWE)

References

FAQ

What is CVE-2026-9123?

CVE-2026-9123 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 traffi...

How severe is CVE-2026-9123?

CVE-2026-9123 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-9123?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome, Google Android, Google Chrome Os, Linux Linux Kernel.