CVE-2012-2539
Published: March 28, 2022
Official Description
Microsoft Word allows attackers to execute remote code or cause a denial-of-service (DoS) via crafted RTF data.
CISA KEV Advisory
Microsoft Word Remote Code Execution Vulnerability
Microsoft Word allows attackers to execute remote code or cause a denial-of-service (DoS) via crafted RTF data.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in Microsoft Word allows attackers to execute remote code or cause a denial-of-service (DoS) via crafted RTF data. With an EPSS score of 0.84414, there is a very high likelihood of exploitation, and its inclusion in CISA's KEV catalog confirms active exploitation. This is an urgent risk for users of Microsoft Word.
This vulnerability is actively being exploited in the wild and is included in CISA's KEV catalog. It is remotely exploitable, likely through malicious RTF documents distributed via email or web downloads.
Users should ensure Microsoft Word and the underlying operating system are fully patched and updated. Exercise caution when opening RTF documents from untrusted sources and consider disabling RTF previews if possible.
Technical Analysis
CVE-2012-2539 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2012-2539 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2012-2539 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1