Fortimanager
CVE-2025-54820
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Stack buffer bounds checking
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 8.1 (HIGH). Attack vector: Network. Complexity: High. Privileges required: None. User interaction: None. Exploitation no authentication required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker without authentication could exploit this vulnerability to a remote unauthenticated attacker to execute unauthorized commands via crafted r. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.4.2, FortiManager 7.2.0 through 7.2.10, FortiManager 6.4 all versions may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. [CVSS 8.1 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-121 (Stack-based Buffer Overflow). Affects Fortimanager. A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.4.2, FortiManager 7.2.0 through 7.2.10, FortiManager 6.4 all versions may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.
Know when Fortimanager gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
A Stack-based Buffer Overflow vulnerability [CWE-121] vulnerability in Fortinet FortiManager 7.4.0 through 7.4.2, FortiManager 7.2.0 through 7.2.10, FortiManager 6.4 all versions may allow a remote unauthenticated attacker to execute unauthorized commands via crafted requests, if the service is enabled. The success of the attack depends on the ability to bypass the stack protection mechanisms.
Executive ViewAI
FortiManager deployments (versions 6.4, 7.2.0-7.2.10, and 7.4.0-7.4.2) face an unpatched remote code execution vulnerability requiring immediate attention. An unauthenticated attacker can exploit this stack-based buffer overflow to execute arbitrary commands if the vulnerable service is enabled, potentially compromising network management infrastructure and all connected FortiGate devices.
Disable the affected service if operationally feasible; implement strict network-layer access controls limiting FortiManager connectivity to authorized administrator IP ranges only; deploy WAF or IPS rules to block malformed requests matching known buffer overflow patterns; enforce VPN/bastion host access to FortiManager; increase logging and real-time alerting for FortiManager service anomalies; monitor for available Fortinet hotfixes or interim updates; consider temporary failover to alternate management infrastructure if available.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than it was allocated to hold.
Affected Products (CPE)CVE.org
Related Vulnerabilities in Fortinet FortiManager Multiple Vulnerabilities
View all 4More in Fortimanager
View allArbitrary file write and folder deletion in Fortinet FortiManager, FortiOS, and FortiProxy is possible via a path traver
A missing authentication for critical function in FortiManager 7.6.0, FortiManager 7.4.0 through 7.4.4, FortiManager 7.2
A buffer underwrite ('buffer underflow') vulnerability in the administrative interface of Fortinet FortiOS version 7.2.0
A client-side enforcement of server-side security [CWE-602] vulnerability in Fortinet FortiManager version 7.4.0 and bef
An improper neutralization of special elements used in an os command ('OS Command Injection') vulnerability [CWE-78] in
A server-side request forgery vulnerability [CWE-918] in Fortinet FortiAnalyzer version 7.4.0, version 7.2.0 through 7.2
A missing authentication for critical function in Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4
Remote code execution in Fortinet FortiManager and FortiAnalyzer (plus their Cloud variants) arises from a stack-based b
Lack of root file system integrity checking in Fortinet FortiManager VM application images of 6.2.0, 6.0.6 and below may
An improper access control vulnerability [CWE-284] in FortiManager management interface 7.2.0 through 7.2.2, 7.0.0 throu
A improper neutralization of special elements used in a command ('command injection') in Fortinet FortiManager versions
A client-side enforcement of server-side security in Fortinet FortiAnalyzer-BigData at least version 7.4.0 and 7.2.0 thr
GitHub PoC
Exploit-DB