What is CVE-2025-13636?

CVE-2025-13636 is a medium-severity vulnerability in Apple macOS, classified under Authentication Bypass by Spoofing. CVSS score: 4.3/10. Published 2025-12-02.

How severe is CVE-2025-13636?

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

Vulnerability in Apple macOS

CVE-2025-13636

Inappropriate implementation in Split View in Google Chrome prior to 143.0.7499.41 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted domain name. (Chromium security severity: Low)

Published 2025-12-02 · last modified 2026-09-25.

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:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (8.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/446181124 (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2025-13636?: CVE-2025-13636 is a medium-severity vulnerability in Apple macOS, classified under Authentication Bypass by Spoofing. CVSS score: 4.3/10. Published 2025-12-02.
How severe is CVE-2025-13636?: Medium severity. CVSS v3 base score is 4.3 out of 10.