---
title: "CVE-2024-38094: Microsoft SharePoint Deserialization Vulnerability"
url: https://erroneo.us/security/cve/CVE-2024-38094/
description: "CVE-2024-38094 (Microsoft SharePoint): Exploited in the wild (CISA KEV). Microsoft SharePoint Remote Code Execution Vulnerability"
type: vulnerability-record
section: "Security Digest"
date_published: 2024-07-09
date_modified: 2026-02-10
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2024-38094"
kev: true
cvss: 7.2
epss: 0.50892
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2024-38094: Microsoft SharePoint Deserialization Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Microsoft SharePoint. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-10-22, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-11-12 ; treat that as the outer limit, not the target. CISA also lists it as known to be used in ransomware campaigns .
- EPSS 50.9% , percentile 99: FIRST’s model estimates a 50.9% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (high (admin)). Exposure depends on who can log in.

## What it is

Microsoft SharePoint Remote Code Execution Vulnerability

## Affected products (CVE record)

- Microsoft Microsoft SharePoint Enterprise Server 2016: 16.0.0 < 16.0.5456.1000
- Microsoft Microsoft SharePoint Server 2019: 16.0.0 < 16.0.10412.20001
- Microsoft Microsoft SharePoint Server Subscription Edition: 16.0.0 < 16.0.17328.20424

## Severity

- microsoft CVSS 3.1: 7.2 `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C`

## Exploitation

- CISA KEV: added 2024-10-22; federal due date 2024-11-12. Known ransomware use: Known.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 50.89% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Microsoft SharePoint Remote Code Execution Vulnerability](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38094)
- [CVE.org record CVE-2024-38094](https://www.cve.org/CVERecord?id=CVE-2024-38094)
- [NVD entry CVE-2024-38094](https://nvd.nist.gov/vuln/detail/CVE-2024-38094)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38094)

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Source page: https://erroneo.us/security/cve/CVE-2024-38094/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt