What is CVE-2020-6502?

CVE-2020-6502 is a medium-severity vulnerability in Google Chrome, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2020-06-03.

How severe is CVE-2020-6502?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Google Chrome

CVE-2020-6502

Incorrect implementation in permissions in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to spoof security UI via a crafted HTML page.

Published 2020-06-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (49.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Google Chrome — versions unspecified

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html (Vendor Advisory)
crbug.com/785159 (Permissions Required)

Frequently asked questions

What is CVE-2020-6502?: CVE-2020-6502 is a medium-severity vulnerability in Google Chrome, classified under Incorrect Default Permissions. CVSS score: 6.5/10. Published 2020-06-03.
How severe is CVE-2020-6502?: Medium severity. CVSS v3 base score is 6.5 out of 10.