CVE-2012-2539VulnerabilityPublished 03/28/2022Updated 10/24/2026

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

Affects Microsoft WordSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/28/2022
KEV deadline: 04/18/2022
EPSS: 53.0% chance of exploitation in 30 days – higher than 98% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2012-2539 (opens in a new tab)

Description

CVE-2012-2539 is a high-severity vulnerability in Microsoft Word that allows remote code execution or denial-of-service via specially crafted RTF data. The vulnerability has been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

Microsoft Word contains a remote code execution vulnerability identified as CVE-2012-2539. This flaw allows attackers to execute arbitrary code or cause a denial-of-service condition by supplying crafted Rich Text Format (RTF) data. The vulnerability has been observed in active exploitation scenarios, indicating real-world risk. However, no detailed version information or patch status is included in the provided data.

Impact

Successful exploitation can lead to remote code execution, allowing attackers to run arbitrary code on the affected system, or cause a denial-of-service, potentially disrupting user operations. The vulnerability has been exploited in the wild, confirming its practical impact.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Given the known exploitation, users should monitor official Microsoft security advisories for updates and apply patches promptly once available.

Weaknesses

CWE-399Unclassified weakness (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 11:11:23 UTC

Weaknesses

References

Related threats