What is CVE-2026-15771?

CVE-2026-15771 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-07-14.

How severe is CVE-2026-15771?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Google Chrome

CVE-2026-15771

Insufficient validation of untrusted input in Media in Google Chrome on Windows prior to 150.0.7871.125 allowed a remote attacker who had compromised the renderer process to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-07-14 · last modified 2026-07-15.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (28.1th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Google Chrome — versions 150.0.7871.125
Microsoft Windows

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0353146… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/525177160 (Permissions Required)

Frequently asked questions

What is CVE-2026-15771?: CVE-2026-15771 is a medium-severity vulnerability in Google Chrome, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2026-07-14.
How severe is CVE-2026-15771?: Medium severity. CVSS v3 base score is 5.3 out of 10.