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CVE-2012-2539

Microsoft Word Remote Code Execution

7.8 HIGHActively exploited (CISA KEV)EPSS 53.0%
  1. Published11 Dec 2012
  2. Added to CISA KEV28 Mar 2022
  3. Remediation due18 Apr 2022
Actively exploited (CISA KEV)

Microsoft Word allows attackers to execute remote code or cause a denial-of-service (DoS) via crafted RTF data.

Added to KEV: 28 Mar 2022Federal remediation due: 18 Apr 2022

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."

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Microsoft Office Compatibility Packall versions
Microsoft Office Web Apps2010
Microsoft Office Word Viewerall versions
Microsoft SharePoint Server2010
Microsoft Word2003 · 2007 · 2010

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2012-2539 being actively exploited?

Yes. CVE-2012-2539 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 28 Mar 2022.

How severe is CVE-2012-2539?

CVE-2012-2539 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 53.0% probability of exploitation.

Which products are affected by CVE-2012-2539?

Affected 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?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2012-2539 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.