Auth bypass in Microsoft Windows 10 1507

CVE-2025-59280

Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.005 (37.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-59280: held from 0.004 to 0.005.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-59280?
CVE-2025-59280 is a low-severity vulnerability in Microsoft Windows 10 1507, classified under Improper Authentication. CVSS score: 3.1/10. Published 2025-10-14.
How severe is CVE-2025-59280?
Low severity. CVSS v3 base score is 3.1 out of 10.
Is CVE-2025-59280 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.