CVE-2024-38094: Microsoft SharePoint Deserialization Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 22 Oct 2024, 105 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 50.9%
EPSS score, percentile 98.9 of all scored records
- How severe?
- 7.2 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA deadline 12 Nov 2024. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Which versions are affected?
Affected
- from 16.0.0 to before 16.0.5456.1000
- from 16.0.0 to before 16.0.10412.20001
- from 16.0.0 to before 16.0.17328.20424
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: 12 November 2024.
Advisories and patches
Linked from CISA's catalog entry
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38094
- https://nvd.nist.gov/vuln/detail/CVE-2024-38094
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | from 16.0.0 to before 16.0.5456.1000 |
| Status | Versions |
|---|---|
| Affected | from 16.0.0 to before 16.0.10412.20001 |
| Status | Versions |
|---|---|
| Affected | from 16.0.0 to before 16.0.17328.20424 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Microsoft SharePoint contains a deserialization vulnerability that allows for remote code execution.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2024-38094 to its Known Exploited Vulnerabilities (KEV) catalog on 22 Oct 2024.
- CISA marks it as known to be used in ransomware campaigns.
- The due date CISA sets for the required action is 12 Nov 2024.
- The CVE record was published on 9 Jul 2024, 105 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 7.2 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 50.9% (percentile 98.9), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
Microsoft SharePoint Remote Code Execution Vulnerability
Microsoft SharePoint Remote Code Execution Vulnerability
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-502: Deserialization of Untrusted Data
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 9 Jul 2024 | CVE record published |
| 22 Oct 2024 | Added to CISA KEV |
| 12 Nov 2024 | CISA due date for the required action |
| 10 Feb 2026 | CVE record last updated |
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