What is CVE-2026-8560?

CVE-2026-8560 is a medium-severity vulnerability in Apple Iphone_os, classified under Heap-based Buffer Overflow. CVSS score: 4.3/10. Published 2026-05-14.

How severe is CVE-2026-8560?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Buffer overflow in Apple Iphone_os

CVE-2026-8560

Heap buffer overflow in SwiftShader in Google Chrome on Mac and iOS prior to 148.0.7778.168 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium security severity: Medium)

Vulnerability class: Buffer Overflow

EPSS: 0.000 (8.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Apple Iphone_os
Apple Macos
Google Chrome — versions 148.0.7778.168

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

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

Frequently asked questions

What is CVE-2026-8560?: CVE-2026-8560 is a medium-severity vulnerability in Apple Iphone_os, classified under Heap-based Buffer Overflow. CVSS score: 4.3/10. Published 2026-05-14.
How severe is CVE-2026-8560?: Medium severity. CVSS v3 base score is 4.3 out of 10.