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Fencer Vulns
critical 9.8

CVE-2019-0604 kev+ ransomware in the critical feed json

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application p…

published 2019-03-05 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-1370

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2021-11-03, used in ransomware
epss
99.9%
EPSS 99.9% chance of exploitation in 30 days, percentile 99.9%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

Timeline

  1. Published
  2. First public exploit (EDB-48053)
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
5 y ago
Patch by
2022-05-03 (4 y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor, product
Microsoft, SharePoint
CISA name
Microsoft SharePoint Remote Code Execution Vulnerability

Ransomware

Groups reported to have exploited it in intrusions.

  • Hello ransomware gang
  • Ghost/Cring ransomware gang

reported by trendmicro.comcisa.gov

Ransomware Vulnerability Matrix by BushidoUK (github.com/BushidoUK/Ransomware-Vulnerability-Matrix), reformatted per CVE. CC BY 4.0

ATT&CK techniques

How it is exploited and what it leads to, in MITRE ATT&CK terms.

  • T1190 Exploit Public-Facing Application exploitation
  • T1041 Exfiltration Over C2 Channel primary impact
  • T1505.003 Web Shell primary impact
  • T1608.001 Upload Malware primary impact
  • T1003 OS Credential Dumping secondary impact

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

99.91% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-48053 Microsoft SharePoint - Deserialization Remote Code Execution remote, 2020-01-21

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Microsoft Microsoft SharePoint Server
  • Microsoft Microsoft SharePoint Foundation
  • Microsoft Microsoft SharePoint Enterprise Server

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.