Description
Use after free in Tracing in Google Chrome on Windows prior to 151.0.7922.72 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)
Published: 2026-07-30
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A use‑after‑free vulnerability in the tracing subsystem of Google Chrome (CWE‑416) allows a local attacker to exploit a malicious file and gain elevated privileges on a Windows machine. The flaw, also described as an Access Control Weakness (CWE‑825), can be triggered without requiring network access and enables the attacker to write arbitrary data after a freed object, potentially leading to arbitrary code execution at the operating system level.

Affected Systems

Google Chrome on Windows versions prior to 151.0.7922.72 is affected. The vulnerability applies to all installations of that browser running on the Windows operating system where the vulnerable tracing feature is enabled.

Risk and Exploitability

The CVSS score of 7.8 indicates a high severity, while the EPSS score of less than 1% shows low expected exploitation probability at the time of analysis. The vulnerability is not listed in the CISA KEV catalog. The likely attack path requires local access and a crafted malicious file, which can be placed in a location accessible to the user to trigger the use‑after‑free during tracing operations.

Generated by OpenCVE AI on August 4, 2026 at 23:07 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 151.0.7922.72 or later.
  • If an immediate upgrade is not possible, disable the tracing feature in Chrome's experimental flags to mitigate exploitation.
  • Configure Windows Defender Exploit Guard or Host Based Intrusion Prevention System (HIPS) to block the execution of untrusted files from external sources and monitor for unusual privilege escalation attempts.

Generated by OpenCVE AI on August 4, 2026 at 23:07 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4710-1 chromium security update
Debian DSA Debian DSA DSA-6408-1 chromium security update
History

Thu, 30 Jul 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/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': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}


Thu, 30 Jul 2026 12:15:00 +0000

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

None

cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}

threat_severity

Moderate


Thu, 30 Jul 2026 04:45:00 +0000

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

Thu, 30 Jul 2026 01:00:00 +0000

Type Values Removed Values Added
Description Use after free in Tracing in Google Chrome on Windows prior to 151.0.7922.72 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)
Weaknesses CWE-416
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-07-31T03:55:34.828Z

Reserved: 2026-07-27T23:35:06.730Z

Link: CVE-2026-17862

cve-icon Vulnrichment

Updated: 2026-07-30T12:24:20.391Z

cve-icon NVD

Status : Analyzed

Published: 2026-07-30T01:16:50.057

Modified: 2026-08-03T17:38:43.750

Link: CVE-2026-17862

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-30T00:19:42Z

Links: CVE-2026-17862 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-04T23:15:07Z

Weaknesses