Description
Use after free in Network in Google Chrome prior to 149.0.7827.115 allowed an attacker in a privileged network position to potentially exploit heap corruption via malicious network traffic. (Chromium security severity: High)
Published: 2026-06-11
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A use‑after‑free flaw exists in Chrome’s Network code for versions before 149.0.7827.115. The flaw allows an attacker positioned on a privileged network to send specially crafted traffic that corrupts heap memory, potentially enabling arbitrary code execution. This vulnerability is associated with both CWE-416 and CWE-825 and is classified as a high‑severity issue by Chromium’s own security team.

Affected Systems

Google Chrome versions older than 149.0.7827.115 on all supported operating systems are vulnerable. No specific environment restrictions are listed, but the attacker must be able to dictate network traffic to the target.

Risk and Exploitability

The flaw’s CVSS score of 8.1 combined with the use‑after‑free nature suggests a serious exploitation risk, and the EPSS score of 0.00195 indicates a very low but non‑zero exploitation probability. The vulnerability is not listed in CISA’s KEV catalog. Exploitation likely requires a trusted network segment or an attacker with sufficient privileges to generate malicious traffic toward the victim’s Chrome instance.

Generated by OpenCVE AI on June 19, 2026 at 13:55 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Google Chrome to version 149.0.7827.115 or later, which fixes the CWE‑416 use‑after‑free flaw that can lead to heap corruption and arbitrary code execution.
  • If an immediate update is not feasible, disable or restrict any Chrome features that rely on the vulnerable network code so that the CWE‑416 defect cannot be triggered by untrusted network input.
  • Implement firewall rules or network segmentation to block malicious traffic from privileged networks, reducing the opportunity for an attacker to exploit the CWE‑416 use‑after‑free vulnerability.

Generated by OpenCVE AI on June 19, 2026 at 13:55 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6344-1 chromium security update
History

Fri, 19 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: chromium-browser: Use after free  Network
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Important


Fri, 12 Jun 2026 17:15:00 +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, 12 Jun 2026 03:15:00 +0000

Type Values Removed Values Added
Title Use-After-Free Exploit in Chrome’s Network Code Allowing Heap Corruption

Fri, 12 Jun 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

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


Thu, 11 Jun 2026 23:45:00 +0000

Type Values Removed Values Added
Title Use-After-Free Exploit in Chrome’s Network Code Allowing Heap Corruption

Thu, 11 Jun 2026 22:45:00 +0000

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

Thu, 11 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Description Use after free in Network in Google Chrome prior to 149.0.7827.115 allowed an attacker in a privileged network position to potentially exploit heap corruption via malicious network traffic. (Chromium security severity: High)
Weaknesses CWE-416
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-12T03:55:52.942Z

Reserved: 2026-06-11T18:16:03.658Z

Link: CVE-2026-12012

cve-icon Vulnrichment

Updated: 2026-06-12T00:56:19.720Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-11T22:16:53.700

Modified: 2026-06-12T17:12:28.677

Link: CVE-2026-12012

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-11T20:48:06Z

Links: CVE-2026-12012 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-19T14:00:16Z

Weaknesses