Exploited vulnerability · CISA KEV

Is CVE-2012-2539 exploited? Yes: in CISA KEV since 28 Mar 2022

Gociux · Microsoft Word · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2012-2539, Microsoft Word Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 28 Mar 2022, 3393 days after it was published. It affects Microsoft Word. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

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

What to do

1. Check whether you run it. Look for Word in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
2. Apply the fix. Apply updates per vendor instructions.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 12 Dec 2012.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in Word

• CVE-2023-36761: Microsoft Word Information Disclosure Vulnerability (12 Sep 2023)
• CVE-2006-2492: Microsoft Word Malformed Object Pointer Vulnerability (8 Jun 2022)
• CVE-2014-1761: Microsoft Word Memory Corruption Vulnerability (15 Feb 2022)

References

• nvd.nist.gov/vuln/detail/CVE-2012-2539

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2022 · Microsoft scorecard · act-now radar.