Exploited vulnerability · CISA KEV

Is CVE-2024-38226 exploited? Yes: in CISA KEV since 10 Sep 2024

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

Yes. CVE-2024-38226, Microsoft Publisher Protection Mechanism Failure Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 10 Sep 2024, the day it was published. It affects Microsoft Publisher. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What it is

Microsoft Publisher contains a protection mechanism failure vulnerability that allows attacker to bypass Office macro policies used to block untrusted or malicious files.

What to do

1. Check whether you run it. Look for Publisher in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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 Sep 2024.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38226
• nvd.nist.gov/vuln/detail/CVE-2024-38226

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 September 2024 · Microsoft scorecard · act-now radar.