What is CVE-2025-12440?

CVE-2025-12440 is a medium-severity vulnerability in Apple Macos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.3/10. Published 2025-11-10.

How severe is CVE-2025-12440?

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

Buffer overflow in Apple Macos

CVE-2025-12440

Inappropriate implementation in Autofill in Google Chrome prior to 142.0.7444.59 allowed a remote attacker who convinced a user to engage in specific UI gestures to obtain potentially sensitive information from process memory via a crafted…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (7.9th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2025-12440?: CVE-2025-12440 is a medium-severity vulnerability in Apple Macos, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.3/10. Published 2025-11-10.
How severe is CVE-2025-12440?: Medium severity. CVSS v3 base score is 5.3 out of 10.