CVE-2025-47697VulnerabilityPublished 30 May 2025

CVE-2025-47697: UCHIDA YOKO wivia 5 · Client-side enforcement of server-side security

Affects UCHIDA YOKO wivia 5Source CVE Database V5

Not known to be exploited · CVSS 6.5 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.0 base score

6.5Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
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: 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: 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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on 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 30 May 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 2026-10-26.

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 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
UCHIDA YOKO CO., LTD. wivia 5	Affected *	Fixed in–

AI-suggested

1. Network Segmentation: Isolate wivia 5 devices on dedicated network segments with strict access controls to limit exposure to untrusted networks. 2. Access Controls: Implement firewall rules and VPN requirements to restrict remote access to these devices only to trusted administrators and internal systems. 3. Monitoring and Logging: Enable detailed logging on wivia 5 devices and network infrastructure to detect unusual access patterns or unauthorized configuration changes. 4. Application Layer Controls: Use web application firewalls (WAFs) or reverse proxies to inspect and filter traffic directed at the device, potentially blocking unauthorized requests attempting to exploit client-side enforcement weaknesses. 5. Vendor Engagement: Engage with UCHIDA YOKO CO., LTD. to obtain timelines for patches or updates and apply them promptly once available. 6. Incident Response Preparedness: Prepare incident response plans specific to potential compromise of these devices, including rapid isolation and forensic analysis. 7. User Awareness: Train administrators on the risks of this vulnerability and the importance of secure management practices, including avoiding use of default credentials and monitoring device configurations regularly.

Description

Client-side enforcement of server-side security issue exists in wivia 5 all versions. If exploited, an unauthenticated attacker may bypass authentication and operate the affected device as the moderator user.

Impact

For European organizations using wivia 5 devices, this vulnerability poses a notable risk. Unauthorized access with moderator privileges could lead to exposure of sensitive data, unauthorized configuration changes, and potential lateral movement within internal networks. Confidentiality and integrity of data managed or transmitted by the device could be compromised. Given that the attack requires no authentication or user interaction and can be executed remotely, attackers could exploit this vulnerability from outside the network perimeter, increasing the risk of external threat actors gaining control. This is particularly concerning for sectors with stringent data protection requirements such as finance, healthcare, and critical infrastructure in Europe. The medium severity rating suggests that while availability is not directly impacted, the breach of confidentiality and integrity could have cascading effects on business operations and compliance with regulations like GDPR. Additionally, the absence of patches means organizations must rely on compensating controls until a fix is available.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 7 Jul 2025, 21:57 UTC

Technical details

References

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