CVE-2020-0902 — Service Fabric Elevation of Privilege

Executive Summary

An elevation of privilege vulnerability exists in Service Fabric File Store Service under certain conditions. An unauthenticated remote user could gain rights to the Service Fabric File Store Service if the node is exposed externally via SMB or SCP standard ports and they are using the impacted configuration. The update addresses the vulnerability by making ineffective the resources created by the impacted configuration.

Overview

9.8

CVSS CRITICAL

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Elevation of Privilege

Released Mar 10 2020

Last Updated Mar 10 2020

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.02926 — 0.85268 percentile

NVD CVSS 9.8 CRITICAL — differs from MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

ATTACK VECTOR

Network

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

None

USER INTERACTION

None

SCOPE

Unchanged

EPSS Score

0.02926

probability of exploitation in the next 30 days

0.85268 percentile - updated 2026-06-21

View on FIRST.org

Affected Products

1 affected product

Product	KB Article	Severity	Impact	Restart Required
Service Fabric	`Release Notes (Security Update)`	Important	Elevation of Privilege	Maybe

Patches

1 patch

Article	Type	Restart
`Release Notes`	Security Update	Maybe

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Rohit Gurunath of Microsoft Corporation

References

MSRC Advisory MITRE NVD