What is CVE-2026-71352?

CVE-2026-71352 is a high-severity vulnerability in Microsoft Windows 10 1607, classified under Integer Underflow. CVSS score: 8.8/10. Published 2026-09-08.

How severe is CVE-2026-71352?

High severity. CVSS v3 base score is 8.8 out of 10.

Integer overflow in Microsoft Windows 10 1607

CVE-2026-71352

Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.

Published 2026-09-08 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.7th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-191 — Integer Underflow

References

Windows Remote Access Connection Manager Remote Code Execution Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-71352?: CVE-2026-71352 is a high-severity vulnerability in Microsoft Windows 10 1607, classified under Integer Underflow. CVSS score: 8.8/10. Published 2026-09-08.
How severe is CVE-2026-71352?: High severity. CVSS v3 base score is 8.8 out of 10.