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CVE-2025-27509

Date: March 6, 2025

fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time (JIT) provisioning is enabled, or create new accounts tied to forged assertions if f MDM enrollment is enabled. This vulnerability is fixed in 4.64.2, 4.63.2, 4.62.4, and 4.58.1.

Severity Score

Related Resources (7)

https://github.com/fleetdm/fleet
https://github.com/fleetdm/fleet/security/advisories/GHSA-52jx-g6m5-h735
https://github.com/fleetdm/fleet/commit/718c95e47ad010ad6b8ceb3f3460e921fbfc53bb
https://github.com/fleetdm/fleet/releases/tag/fleet-v4.64.2
https://pkg.go.dev/vuln/GO-2025-3505
https://nvd.nist.gov/vuln/detail/CVE-2025-27509
https://www.mend.io/vulnerability-database/CVE-2025-27509

Severity Score

Weakness Type (CWE)

Improper Authorization

CWE-285

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-74

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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