CVE-2025-21195 | Azure Service Fabric Runtime Elevation of Privilege Vulnerability

Improper link resolution before file access ('link following') in Service Fabric allows an authorized attacker to elevate privileges locally.

Published: 2025-07-08 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-21195 is rated Low Risk (32.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.32%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-21195

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.25% 0.32% +0.08%
2 2026-05-04 0.05% 0.25% +0.20%
3 2026-03-03 0.05%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21195

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.0 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
0.8 5.2 [email protected]

Weakness enumeration for CVE-2025-21195

Affected software / configurations for CVE-2025-21195

Vendor Product Version Raw CPE
microsoft azure_service_fabric < 10.1 cpe:2.3:a:microsoft:azure_service_fabric:*:*:*:*:*:*:*:*
microsoft azure_service_fabric 10.1 cpe:2.3:a:microsoft:azure_service_fabric:10.1:-:*:*:*:*:*:*
microsoft azure_service_fabric 10.1 cpe:2.3:a:microsoft:azure_service_fabric:10.1:cumulative_update_2:*:*:*:*:*:*
microsoft azure_service_fabric 10.1 cpe:2.3:a:microsoft:azure_service_fabric:10.1:cumulative_update_3:*:*:*:*:*:*
microsoft azure_service_fabric 10.1 cpe:2.3:a:microsoft:azure_service_fabric:10.1:cumulative_update_4:*:*:*:*:*:*
microsoft azure_service_fabric 10.1 cpe:2.3:a:microsoft:azure_service_fabric:10.1:cumulative_update_5:*:*:*:*:*:*
microsoft azure_service_fabric 10.1 cpe:2.3:a:microsoft:azure_service_fabric:10.1:cumulative_update_6:*:*:*:*:*:*

References for CVE-2025-21195

cvelogic Threat Intelligence