What is CVE-2026-28946?

CVE-2026-28946 is a medium-severity vulnerability in Apple Macos, classified under Use After Free. CVSS score: 6.5/10. Published 2026-05-11.

How severe is CVE-2026-28946?

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

Use After Free in Apple Macos

CVE-2026-28946

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Vulnerability class: Use-After-Free

EPSS: 0.000 (11.9th 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:N/I:N/A:H.

Affected products

Apple Macos — versions 0
Apple Safari — versions 0

Weakness classification (CWE)

CWE-416 — Use After Free

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com

Frequently asked questions

What is CVE-2026-28946?: CVE-2026-28946 is a medium-severity vulnerability in Apple Macos, classified under Use After Free. CVSS score: 6.5/10. Published 2026-05-11.
How severe is CVE-2026-28946?: Medium severity. CVSS v3 base score is 6.5 out of 10.