CVE-2026-69548 Windows RNDIS Information Disclosure Vulnerability

Medium 4.6 Published Updated

Heap-based buffer overflow in Windows RNDIS allows attackers to disclose information via physical access.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-69548?

CVE-2026-69548 is a medium-severity memory corruption vulnerability in Microsoft Windows 10 1607, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Heap-based buffer overflow in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack.

Weakness: CWE-122

Which versions are affected by CVE-2026-69548?

It affects 13 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 23h2, Microsoft Windows 11 24h2 and 7 more.

How do I fix CVE-2026-69548?

No fix has been published for CVE-2026-69548 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-69548 being exploited?

There is no known exploitation of CVE-2026-69548 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-xgwf-rhr5-79g2.

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