CVE-2019-0604
CriticalExploitedPublic exploitA remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'.
Published Mar 15, 2021 · Updated Oct 21, 2025 · Also known as TR-21-0231
Key Facts
Patch immediately- CVE-2019-0604 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Sharepoint Enterprise Server (Microsoft), Sharepoint Foundation (Microsoft), Sharepoint Server (Microsoft).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since May 10, 2019 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0594.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 3, 2021 | May 3, 2022 | Known |
| Industry KEV feed | May 10, 2019 | May 3, 2022 | Known |
| CIRCL KEV | Nov 3, 2021 | May 3, 2022 | Known |
| ENISA EUVD | Nov 3, 2021 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
7 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Sharepoint Enterprise ServerMicrosoft | 2016, >= 2016 | n/a |
| Sharepoint FoundationMicrosoft | 2013-sp1, >= 2013 Service Pack 1 | n/a |
| Sharepoint ServerMicrosoft | 2010-sp2, 2019, >= 2010 Service Pack 2 | n/a |
Timeline
Added to Industry KEV feed
May 10, 2019
Publicly disclosed
Mar 15, 2021
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Last updated
Oct 21, 2025
Weakness Type
- CWE-20 Improper Input Validation
References
- advisoryhttp://feedproxy.google.com/~r/TheHackersNews/~3/YNZgPucSGkw/icrosoft-exchange-ransomware.html
- advisoryhttps://fidelissecurity.com/threatgeek/threat-intelligence/microsoft-exchange-vulnerabilities/Microsoft-Exchange-Vulnerabilities
- advisoryhttps://github.com/microsoft/CSS-Exchange/tree/main/Security
- advisoryhttps://redmondmag.1105cms01.com/articles/2021/03/12/exchange-dearcry-ransomware.aspx
- advisoryhttps://us-cert.cisa.gov/ncas/current-activity/2021/03/13/updates-microsoft-exchange-server-vulnerabilities
FAQ
Common Questions.
A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'.
Affected: Sharepoint Enterprise Server (Microsoft) versions 2016, >= 2016; Sharepoint Foundation (Microsoft) versions 2013-sp1, >= 2013 Service Pack 1; Sharepoint Server (Microsoft) versions 2010-sp2, 2019, >= 2010 Service Pack 2. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since May 10, 2019 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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