VulnerabilityPublished 10 Mar 2026

CVE-2025-54659: Fortinet FortiSOAR Agent Communication Bridge · Information Disclosure

Affects Fortinet FortiSOAR Agent Communication BridgeSource CVE Database V5

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Public exploit available · CVSS 5.5 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score

5.5Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:F/RL:X/RC:R

Base metrics

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Changed
Confidentiality: Low
Integrity: None
Availability: None

Temporal metrics

Exploit Code Maturity: Functional
Report Confidence: Reasonable

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.
Exploit Code Maturity: Functional: Functional exploit code is available. The code works in most situations where the vulnerability exists.
Report Confidence: Reasonable: Significant details are published, but researchers either do not have full confidence in the root cause, or do not have access to source code to fully confirm all of the interactions that may lead to the result. Reasonable confidence exists, however, that the bug is reproducible and at least one impact is able to be verified (Proof-of-concept exploits may provide this). An example is a detailed write-up of research into a vulnerability with an explanation (possibly obfuscated or 'left as an exercise to the reader') that gives assurances on how to reproduce the results.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
FortinetFortiSOAR Agent Communication Bridge	Affected >=1.0.0 <=1.0.2 =1.1.0	Fixed in–

CPE configurations (4)

cpe:2.3:a:fortinet:fortisoaragentcommunicationbridge:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisoaragentcommunicationbridge:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisoaragentcommunicationbridge:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisoaragentcommunicationbridge:1.0.0:*:*:*:*:*:*:*

AI-suggested

To mitigate CVE-2025-54659 effectively, organizations should implement the following specific measures: 1) Immediately restrict network access to the FortiSOAR Agent Communication Bridge port by applying firewall rules or network segmentation to limit exposure only to trusted management systems. 2) Monitor network traffic and logs for unusual or malformed requests targeting the agent port that may indicate exploitation attempts. 3) Apply any available patches or updates from Fortinet as soon as they are released to address the vulnerability at the source. 4) If patches are not yet available, consider disabling or temporarily removing the vulnerable agent component from production environments where feasible. 5) Conduct a thorough audit of files accessible to the fortisoar user to identify and secure sensitive information that could be exposed. 6) Employ intrusion detection or prevention systems (IDS/IPS) with signatures or heuristics to detect path traversal attempts against the agent. 7) Review and harden the configuration of FortiSOAR deployments to minimize unnecessary file permissions and reduce the attack surface. 8) Educate security teams about this vulnerability to ensure rapid detection and response to potential exploitation attempts. These targeted actions go beyond generic advice by focusing on network-level controls, monitoring, and configuration hardening specific to the FortiSOAR Agent Communication Bridge environment.

Description

An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability [CWE-22] vulnerability in Fortinet FortiSOAR Agent Communication Bridge 1.1.0, FortiSOAR Agent Communication Bridge 1.0 all versions may allow an unauthenticated attacker to read files accessible to the fortisoar user on a system where the agent is deployed, via sending a crafted request to the agent port.

Impact

The primary impact of CVE-2025-54659 is unauthorized information disclosure, which can compromise the confidentiality of sensitive data stored or processed by the FortiSOAR Agent Communication Bridge. Attackers gaining access to configuration files, credentials, or operational logs may leverage this information to further infiltrate the network, escalate privileges, or evade detection. While the vulnerability does not directly affect system integrity or availability, the leaked information can facilitate subsequent attacks with potentially severe consequences. Organizations relying on FortiSOAR for security automation and incident response may face increased risk of operational disruption if attackers exploit this vulnerability to gather intelligence on their security posture. The vulnerability's unauthenticated nature and network accessibility increase the likelihood of exploitation, especially in environments where the agent port is exposed or insufficiently protected. This can lead to data breaches, compliance violations, and erosion of trust in security infrastructure. The medium severity rating indicates a moderate but non-negligible risk that requires timely remediation to prevent exploitation.

References

fortiguard.fortinet.com/psirt/FG-IR-26-084 (opens in a new tab)

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