CVE tracker / CVE-2026-125136

CVE-2026-125136

CVE-2026-125136 is the Windows Network Connected Devices Auto-Setup Service Remote Code Execution Vulnerability. Microsoft rates it Critical, CVSS 8.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published November 10, 2026.

Risk summary

HighRemote Code Execution

8.8

CVSS v3 base

High

Severity

Critical

Microsoft's rating

Less Likely

Microsoft: exploitation

In CISA KEV

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

How to fix it

Microsoft lists 20 affected products and the update that fixes each:

KB5131085 · fixed build 10.0.17763.9487
Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
KB5131087 · fixed build 10.0.22631.7711
Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems
KB5131096 · fixed builds 10.0.19045.7846, 10.0.19044.7846
Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 21H2 for 32-bit Systems, and 1 more
KB5131291 · fixed build 10.0.14393.9688
Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
KB5132043 · fixed builds 10.0.26200.9911, 10.0.26100.9911, 10.0.26300.9911
Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, and 1 more
KB5132059 · fixed build 10.0.28000.3501
Windows 11 version 26H1 for x64-based Systems, Windows 11 Version 26H1 for ARM64-based Systems
KB5132061 · fixed builds 10.0.26200.9974, 10.0.26100.9974, 10.0.26300.9974
Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 26H2 for ARM64-based Systems, Windows 11 Version 26H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, and 1 more

What Microsoft changed

November 10, 2026: Information published.

Details

Weakness: CWE-122: Heap-based Buffer Overflow
Publicly disclosed (Microsoft): No
Exploited (Microsoft): No
Known exploited (CISA KEV): Not listed
Published: November 10, 2026
Last revised: November 10, 2026

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.