CVE-2026-11103

chromium-browser: Inappropriate implementation in Installer

Published Jun 4, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
Inappropriate implementation in Installer in Google Chrome on Windows prior to 149.0.7827.53 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows
Type Values Removed Values Added
Title chromium-browser: Inappropriate implementation in Installer
Weaknesses CWE-266
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Chrome Installer Privilege Escalation on Windows
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

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'}

Type Values Removed Values Added
Title Chrome Installer Privilege Escalation on Windows
Type Values Removed Values Added
Title Local Privilege Escalation via Malicious Installer in Google Chrome for Windows
Weaknesses CWE-238
Type Values Removed Values Added
Weaknesses CWE-269
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'}

ssvc

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

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Local Privilege Escalation via Malicious Installer in Google Chrome for Windows
Weaknesses CWE-238
Type Values Removed Values Added
Description Inappropriate implementation in Installer in Google Chrome on Windows prior to 149.0.7827.53 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 6, 2026, 12:16 PM
Reserved
Jun 4, 2026, 5:06 PM
Status
Analyzed
Published
Jun 4, 2026, 11:17 PM
Modified
Jul 23, 2026, 7:10 AM
Severity
Moderate
Public date
Jun 2, 2026, 12:00 AM