Privilege escalation in Google Chrome
CVE-2026-84358
Improper privilege management in Downloads in Google Chrome prior to 152.0.7977.75 allowed a remote attacker who had compromised the renderer process to spoof address bar via a crafted HTML page. (Chromium security severity: Medium)
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (11.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001
Affected products
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
- issues.chromium.org/issues/514006886 (Permissions Required)
Frequently asked questions
- What is CVE-2026-84358?
- CVE-2026-84358 is a medium-severity vulnerability in Google Chrome, classified under Improper Privilege Management. CVSS score: 4.2/10. Published 2026-09-02.
- How severe is CVE-2026-84358?
- Medium severity. CVSS v3 base score is 4.2 out of 10.