CVE-2026-3922
Published: 11 March 2026
Summary
CVE-2026-3922 is a high-severity Use After Free (CWE-416) vulnerability in Google Chrome. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 18.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-16 (Memory Protection) and SI-2 (Flaw Remediation).
Deeper analysis
CVE-2026-3922 is a use-after-free vulnerability (CWE-416) in the MediaStream component of Google Chrome prior to version 146.0.7680.71. Published on 2026-03-11, it enables a remote attacker to potentially exploit heap corruption via a crafted HTML page. Chromium rates its security severity as High, with a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
A remote attacker can exploit this vulnerability over the network with low attack complexity and no privileges required, though user interaction is needed, such as clicking or visiting a malicious site. Successful exploitation could lead to high impacts on confidentiality, integrity, and availability through heap corruption.
Mitigation is available via the stable channel update for Chrome desktop to version 146.0.7680.71 or later, as announced in the Chrome Releases blog. Additional details are documented in the Chromium issue tracker.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-11436
Vulnerability details
Use after free in MediaStream in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Use-after-free vulnerability in Chrome's MediaStream exploited via crafted HTML page for heap corruption and remote code execution, directly enabling Exploitation for Client Execution.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires timely remediation of the use-after-free vulnerability in Chrome's MediaStream by applying the patch to version 146.0.7680.71 or later.
Implements memory protections such as ASLR and DEP to prevent exploitation of heap corruption from the use-after-free in MediaStream.
Provides process isolation in browsers like Chrome to contain the impact of MediaStream exploitation within sandboxed renderer processes.