What is CVE-2026-9996?

CVE-2026-9996 is a medium-severity vulnerability in Apple Macos, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-05-28.

How severe is CVE-2026-9996?

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

Out-of-bounds Read in Apple Macos

CVE-2026-9996

Out of bounds read in WebRTC in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Buffer Overflow

EPSS: 0.000 (8.3th percentile) — read the EPSS interpretation.

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:H/I:N/A:N.

Affected products

Apple Macos
Google Chrome — versions 148.0.7778.216

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

chrome-cve-admin@google.com (Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required)

Frequently asked questions

What is CVE-2026-9996?: CVE-2026-9996 is a medium-severity vulnerability in Apple Macos, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-05-28.
How severe is CVE-2026-9996?: Medium severity. CVSS v3 base score is 6.5 out of 10.