What is CVE-2025-13635?

CVE-2025-13635 is a medium-severity vulnerability in Apple macOS, classified under Authentication Bypass by Spoofing. CVSS score: 4.4/10. Published 2025-12-02.

How severe is CVE-2025-13635?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Apple macOS

CVE-2025-13635

Inappropriate implementation in Downloads in Google Chrome prior to 143.0.7499.41 allowed a local attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

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

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (3.5th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.5% 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/405727341 (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2025-13635?: CVE-2025-13635 is a medium-severity vulnerability in Apple macOS, classified under Authentication Bypass by Spoofing. CVSS score: 4.4/10. Published 2025-12-02.
How severe is CVE-2025-13635?: Medium severity. CVSS v3 base score is 4.4 out of 10.