Description
Use after free in Extensions in Google Chrome prior to 149.0.7827.155 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)
Published: 2026-06-17
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A use‑after‑free condition in Chrome extensions can corrupt the heap when a malicious extension is installed, involving improper memory handling that also aligns with CWE‑825. This flaw may allow an attacker to cause application crashes or execute arbitrary code, as it falls under CWE‑416 and CWE‑825.

Affected Systems

Google Chrome browsers running versions prior to 149.0.7827.155 on all supported platforms are affected, regardless of operating system.

Risk and Exploitability

The CVSS score of 7.5 indicates a high severity vulnerability. The EPSS score of less than 1% signals a low probability of exploitation in the wild, and the flaw is not listed in CISA’s KEV catalog. The flaw involves both CWE‑416 (Use‑after‑free) and CWE‑825, indicating misuse of resources that may lead to heap corruption, and the likely attack vector involves convincing a user to install a deceptive extension, after which the invariant‑free bug could be triggered to corrupt memory.

Generated by OpenCVE AI on June 19, 2026 at 13:23 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Chrome to version 149.0.7827.155 or a later release that fixes the use‑after‑free flaw
  • Remove or disable any Chrome extensions that the user installed through potentially malicious channels
  • Configure enterprise or local Chrome policies to block installation of unverified extensions and enable extension verification

Generated by OpenCVE AI on June 19, 2026 at 13:23 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6351-1 chromium security update
History

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

Type Values Removed Values Added
Title Use‑After‑Free in Chrome Extensions Enables Heap Corruption chromium-browser: chromium-browser: Use after free in Extensions
Weaknesses CWE-825
References
Metrics threat_severity

None

 threat_severity

Important

Thu, 18 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Title Use‑After‑Free in Chrome Extensions Enables Heap Corruption

Wed, 17 Jun 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

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

Wed, 17 Jun 2026 06:45:00 +0000

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

Wed, 17 Jun 2026 05:15:00 +0000

Type Values Removed Values Added
Description Use after free in Extensions in Google Chrome prior to 149.0.7827.155 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)
Weaknesses CWE-416
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-18T03:55:23.261Z

Reserved: 2026-06-16T19:38:26.066Z

Link: CVE-2026-12445

cve-icon Vulnrichment

Updated: 2026-06-17T12:59:13.695Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-17T01:38:13Z

Links: CVE-2026-12445 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-19T13:30:17Z

Weaknesses