CVE-2025-47855
Published: 13 January 2026
Summary
CVE-2025-47855 is a critical-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 20.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SC-7 (Boundary Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the software flaw in FortiFone devices that enables unauthenticated attackers to obtain sensitive device configuration via crafted HTTP or HTTPS requests.
Enforces approved authorizations to block unauthorized logical access to the device configuration exposed by this vulnerability.
Monitors and controls network communications to the FortiFone management interface, preventing external unauthenticated access required to exploit the CVE.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE enables unauthenticated remote exploitation of a public-facing FortiFone web interface (T1190) to dump network device configuration containing sensitive information (T1602.002).
NVD Description
An exposure of sensitive information to an unauthorized actor [CWE-200] vulnerability in Fortinet FortiFone 7.0.0 through 7.0.1, FortiFone 3.0.13 through 3.0.23 allows an unauthenticated attacker to obtain the device configuration via crafted HTTP or HTTPS requests.
Deeper analysisAI
CVE-2025-47855 is an exposure of sensitive information to an unauthorized actor vulnerability, classified under CWE-200, affecting Fortinet FortiFone devices in versions 7.0.0 through 7.0.1 and 3.0.13 through 3.0.23. Published on January 13, 2026, it enables an unauthenticated attacker to obtain the device configuration through crafted HTTP or HTTPS requests. The vulnerability carries a CVSS v3.1 base score of 9.8 (Critical), with vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, indicating high impacts across confidentiality, integrity, and availability.
Any unauthenticated attacker with network access to the affected FortiFone device can exploit this vulnerability with low complexity and no user interaction required. Successful exploitation allows retrieval of the full device configuration, potentially exposing credentials, network settings, and other sensitive data that could facilitate further compromise, such as lateral movement or privilege escalation within the environment.
For mitigation details, refer to the Fortinet PSIRT advisory at https://fortiguard.fortinet.com/psirt/FG-IR-25-260.
Details
- CWE(s)