VulnerabilityPublished 20 Aug 2025

CVE-2025-54551: FUJIFILM Healthcare Americas Synapse Mobility · External Control of Assumed-Immutable Web Parameter

Affects FUJIFILM Healthcare Americas Synapse MobilitySource CVE Database V5

Not known to be exploited · CVSS 4.3 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

4.3Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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

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: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
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.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 20 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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), the Metasploit, Exploit-DB and nuclei-templates index as of 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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
FUJIFILM Healthcare Americas Corporation Synapse Mobility	Affected 8.0 – 8.1.1 5 affected builds	Fixed in–

AI-suggested

Organizations should immediately audit user privileges within Synapse Mobility to ensure the principle of least privilege is enforced, limiting users to only the data necessary for their role. Until an official patch is released, administrators should monitor and log unusual access patterns or parameter manipulations within the search functionality. Implementing Web Application Firewalls (WAFs) with rules to detect and block anomalous parameter tampering could reduce risk. Network segmentation should be employed to restrict access to Synapse Mobility systems only to authorized personnel and devices. Additionally, multi-factor authentication (MFA) should be enforced to reduce the risk of compromised credentials being used to exploit this vulnerability. Regularly reviewing and updating access controls and conducting security awareness training for users about the risks of privilege escalation can further mitigate exploitation. Once patches become available, they should be applied promptly to remediate the vulnerability.

Description

Synapse Mobility 8.0, 8.0.1, 8.0.2, 8.1, and 8.1.1 contain a privilege escalation vulnerability through external control of Web parameter. If exploited, a user of the product may escalate the privilege and access data that the user do not have permission to view by altering the parameters of the search function.

Impact

For European organizations, particularly healthcare providers and institutions using Synapse Mobility, this vulnerability poses a risk of unauthorized access to sensitive patient information. Given the strict data protection regulations in Europe, such as GDPR, unauthorized disclosure of personal health information can lead to severe legal and financial consequences. The ability for a user to escalate privileges and access data beyond their clearance undermines the confidentiality of patient records and could facilitate insider threats or data breaches. Although the vulnerability does not affect data integrity or availability, the confidentiality breach alone is critical in the healthcare context. Additionally, the network-based exploitation and low complexity mean that attackers with legitimate access can relatively easily exploit this flaw. This could impact hospitals, clinics, and medical imaging centers across Europe that rely on FUJIFILM's Synapse Mobility for managing and viewing medical images and related data.

References

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