Exploited vulnerability · CISA KEV

Is CVE-2012-0158 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · Microsoft MSCOMCTL.OCX · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2012-0158, Microsoft MSCOMCTL.OCX Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 3494 days after it was published. It is known to be used in ransomware campaigns. It affects Microsoft MSCOMCTL.OCX. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

Microsoft MSCOMCTL.OCX contains an unspecified vulnerability that allows for remote code execution, allowing an attacker to take complete control of an affected system under the context of the current user.

What to do

1. Check whether you run it. Look for MSCOMCTL.OCX 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 10 Apr 2012.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

References

• nvd.nist.gov/vuln/detail/CVE-2012-0158

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 November 2021 · Microsoft scorecard · act-now radar.