What is CVE-2026-125136?

CVE-2026-125136 is a high-severity vulnerability in Microsoft Windows 10 Version 1607, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-11-10.

How severe is CVE-2026-125136?

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

Buffer overflow in Microsoft Windows 10 Version 1607

CVE-2026-125136

Heap-based buffer overflow in Windows Network Connected Devices Auto-Setup Service allows an unauthorized attacker to execute code over an adjacent network.

Vulnerability class: Buffer Overflow

Published 2026-11-10 · last modified 2026-11-10.

CVSS v3 metric

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

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-125136 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-125136?: CVE-2026-125136 is a high-severity vulnerability in Microsoft Windows 10 Version 1607, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-11-10.
How severe is CVE-2026-125136?: High severity. CVSS v3 base score is 8.8 out of 10.