Security readout for executives and security teams
CVE-2019-0604 is a critical Microsoft SharePoint remote code execution flaw. An attacker can exploit vulnerable SharePoint systems over the network without authentication or user interaction. CISA lists it as known exploited, so this is not theoretical risk. Organizations running the listed SharePoint versions are exposed, especially if SharePoint is reachable from the internet or broadly accessible internally. The source bundle does not identify cloud-hosted SharePoint Online as affected. Treat this as urgent remediation for any affected SharePoint deployment. The combination of unauthenticated network RCE, critical CVSS score, and CISA known-exploited status creates high business risk. Mitigation focus: Inventory SharePoint deployments and identify affected versions listed for CVE-2019-0604.; Review Microsoft MSRC guidance for CVE-2019-0604 and apply the relevant security updates.; Prioritize remediation for internet-facing or partner-accessible SharePoint servers..
Michael Williams reviewed this cited source version on .
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Open ATT&CK lookupCVE-2019-0604 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0604CVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0604CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.