CVE-2025-27509

Description

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.

Weakness Type (CWE)

CWE-285 CWE-285

References

Other References

https://github.com/fleetdm/fleet/commit/718c95e47ad010ad6b8ceb3f3460e921fbfc53bb https://github.com/fleetdm/fleet/security/advisories/GHSA-52jx-g6m5-h735

Frequently Asked Questions

What is CVE-2025-27509? +

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.

How do I check if I'm vulnerable to CVE-2025-27509? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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