# CVE-2012-2539: Microsoft Word Remote Code Execution Vulnerability

> CVE-2012-2539: Microsoft Word Remote Code Execution Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2012-2539
Last updated: 2025-10-22T00:05:45Z

- Published: 2012-12-12 00:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 53.0%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-28, federal due date 2022-04-18, ransomware use: Unknown

## 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."

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Word

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2012-2539)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2012-2539)
- [https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079)
- [https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073](https://oval.cisecurity.org/repository/search/definition/oval%253Aorg.mitre.oval%253Adef%253A16073)
- [http://www.us-cert.gov/cas/techalerts/TA12-346A.html](http://www.us-cert.gov/cas/techalerts/TA12-346A.html)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2012-2539 · Markdown: https://rewindex.com/cve/CVE-2012-2539.md · JSON: https://rewindex.com/api/v1/cves/CVE-2012-2539 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:04:08.984Z