CVE-2023-21702 Windows iSCSI Service Denial of Service Vulnerability

High 7.5 Published Updated

An attacker can cause a denial of service in the Windows iSCSI Service via an out-of-bounds read vulnerability.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-21702?

CVE-2023-21702 is a high-severity denial of service vulnerability in Microsoft Windows 10, published on 14 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Windows iSCSI Service Denial of Service Vulnerability

Weakness: CWE-125

Which versions are affected by CVE-2023-21702?

It affects 13 products.

Products include Microsoft Windows 10, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 20h2, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2 and 7 more.

How do I fix CVE-2023-21702?

No fix has been published for CVE-2023-21702 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-21702 being exploited?

There is no known exploitation of CVE-2023-21702 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-6cmm-7g2g-4f52.

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