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Exploited vulnerability · CISA KEV

Is CVE-2024-38094 exploited? Yes: in CISA KEV since 22 Oct 2024

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

Yes. CVE-2024-38094, Microsoft SharePoint Deserialization Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 22 Oct 2024, 105 days after it was published. It is known to be used in ransomware campaigns. It affects Microsoft SharePoint. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 22 Oct 2024
ransomwareKnownused in campaigns
EPSStop 5%very likely to be exploited
severity7.2CVSS 3.1 · high
US federal due12 Nov 2024BOD 22-01 deadline

What it is

Microsoft SharePoint contains a deserialization vulnerability that allows for remote code execution.

VendorMicrosoft (391 exploited CVEs in KEV)
ProductSharePoint
VulnerabilityMicrosoft SharePoint Deserialization Vulnerability
WeaknessCWE-502
Published9 Jul 2024
Added to KEV22 Oct 2024
Reported by (CNA)microsoft

What to do

  1. Check whether you run it. Look for SharePoint 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 9 Jul 2024.
  4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in SharePoint

References

Questions

Is CVE-2024-38094 being exploited?

Yes. CISA added CVE-2024-38094 to the Known Exploited Vulnerabilities catalog on 22 Oct 2024, which means there is reliable evidence of exploitation in the wild.

Is CVE-2024-38094 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2024-38094?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check Microsoft's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected SharePoint and watch it for signs of compromise.

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 October 2024 · Microsoft scorecard · act-now radar.

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