CVE-2026-62750 Windows HTTP Protocol Stack Tampering Vulnerability

Medium 6.5 Published Updated

An attacker on an adjacent network can tamper with data via the Windows HTTP Protocol Stack due to partial string comparison flaws.

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-2026-62750?

CVE-2026-62750 is a medium-severity vulnerability in Microsoft Windows 10 1607, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Partial string comparison in Windows HTTP Protocol Stack allows an unauthorized attacker to perform tampering over an adjacent network.

Weakness: CWE-187

Which versions are affected by CVE-2026-62750?

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-2026-62750?

No fix has been published for CVE-2026-62750 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-62750 being exploited?

There is no known exploitation of CVE-2026-62750 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-r648-f5mp-m4x9.

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