Description
Heap buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Published: 2026-03-20
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Heap Corruption
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is a heap buffer overflow in the WebRTC implementation of Google Chrome. A remote attacker can trigger memory corruption by delivering a specially crafted HTML document, allowing the attacker to potentially execute arbitrary code on the victim's machine. The issue is categorized as a high severity flaw, aligning with CWEs 122 and 131.

Affected Systems

All installations of Google Chrome older than version 146.0.7680.153 are affected, regardless of operating system. The flaw resides in the browser component and affects users on Windows, macOS, and Linux platforms where the stated Chrome versions run.

Risk and Exploitability

The flaw has a CVSS score of 8.8, indicating high impact, but the EPSS probability is below 1%, suggesting limited exploitation likelihood. It is not listed in the CISA KEV catalog. Attackers would need to load a malicious WebRTC page from a website or email to exploit the buffer; no local privilege escalation or other conditions are required.

Generated by OpenCVE AI on March 20, 2026 at 19:36 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 146.0.7680.153 or later

Generated by OpenCVE AI on March 20, 2026 at 19:36 UTC.

Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6171-1 chromium security update
History

Fri, 20 Mar 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows

Fri, 20 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Fri, 20 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in WebRTC in Google Chrome Allowing Remote Exploit via Crafted HTML chromium-browser: Heap buffer overflow in WebRTC
Weaknesses CWE-131
References
Metrics threat_severity

None

cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

threat_severity

Important


Fri, 20 Mar 2026 11:15:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overflow in WebRTC in Google Chrome Allowing Remote Exploit via Crafted HTML

Fri, 20 Mar 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Fri, 20 Mar 2026 02:15:00 +0000

Type Values Removed Values Added
Description Heap buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-122
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-03-21T04:01:06.987Z

Reserved: 2026-03-19T20:23:55.848Z

Link: CVE-2026-4463

cve-icon Vulnrichment

Updated: 2026-03-20T14:18:07.288Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-20T02:16:39.753

Modified: 2026-03-20T17:57:06.217

Link: CVE-2026-4463

cve-icon Redhat

Severity : Important

Publid Date: 2026-03-18T00:00:00Z

Links: CVE-2026-4463 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-25T14:09:43Z

Weaknesses