CVE-2012-2539 Microsoft Word Remote Code Execution

Exploited in the wild High 7.8 Published Updated

Remote attackers can execute arbitrary code or cause denial of service via crafted RTF data in Microsoft Word and related Office components.

Exploited in the wild
Since 28 Mar 2022
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2012-2539?

CVE-2012-2539 is a high-severity memory corruption vulnerability in Microsoft Office Compatibility Pack, published on 12 Dec 2012. 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

Microsoft Word 2003 SP3, 2007 SP2 and SP3, and 2010 SP1; Word Viewer; Office Compatibility Pack SP2 and SP3; and Office Web Apps 2010 SP1 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted RTF data, aka "Word RTF 'listoverridecount' Remote Code Execution Vulnerability."

Weakness: CWE-787

Which versions are affected by CVE-2012-2539?

It affects 5 products.

Products include Microsoft Office Compatibility Pack, Microsoft Office Web Apps, Microsoft Office Word Viewer, Microsoft Sharepoint Server, Microsoft Word.

How do I fix CVE-2012-2539?

No fix has been published for CVE-2012-2539 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 18 Apr 2022.

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

Is CVE-2012-2539 being exploited?

Yes. Attackers have exploited CVE-2012-2539 in the wild since at least 28 Mar 2022.

All Microsoft Office Compatibility Pack vulnerabilities

Sources

Also known as GHSA-x5wq-5f2r-gxw5.

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