CVE-2015-6126 Use after free in n/a

High 7.2 Published Updated

Local attackers can exploit a race condition in the Windows PGM protocol to gain elevated privileges or cause a denial of service via a crafted application.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2015-6126?

CVE-2015-6126 is a high-severity use after free vulnerability in Microsoft Windows 10, published on 9 Dec 2015. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Race condition in the Pragmatic General Multicast (PGM) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 Gold and 1511 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted application, aka "Windows PGM UAF Elevation of Privilege Vulnerability."

Weakness: CWE-416, CWE-362

Which versions are affected by CVE-2015-6126?

It affects 9 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows 8.1, Microsoft Windows Rt, Microsoft Windows Rt 8.1 and 3 more.

How do I fix CVE-2015-6126?

No fix has been published for CVE-2015-6126 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2015-6126 being exploited?

There is no known exploitation of CVE-2015-6126 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-jfxh-pjvw-6c76.

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