CVE-2019-1091 Information disclosure in Windows

Medium 5.5 Published Updated

Attackers can exploit improper memory handling in Unistore.dll to disclose sensitive information on affected Windows systems.

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

What is CVE-2019-1091?

CVE-2019-1091 is a medium-severity vulnerability in Microsoft Windows 10, published on 15 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An information disclosure vulnerability exists when Unistore.dll fails to properly handle objects in memory, aka 'Microsoft unistore.dll Information Disclosure Vulnerability'.

Weakness: CWE-200

Which versions are affected by CVE-2019-1091?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2019-1091?

No fix has been published for CVE-2019-1091 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-1091 being exploited?

There is no known exploitation of CVE-2019-1091 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-843c-r5h3-9m54.

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