VulnerabilityPublished 31 Oct 2025Updated 3 Nov 2025

CVE-2025-64387: Circutor TCPRS1plus · Clickjacking

Affects Circutor TCPRS1plusSource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 12:29 UTC

CVSS 4.0 base score

5.1Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: Active
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: Active: Successful exploitation of this vulnerability requires a targeted user to perform specific, conscious interactions with the vulnerable system and the attacker’s payload, or the user’s interactions would actively subvert protection mechanisms which would lead to exploitation of the vulnerability.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system 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 to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 31 Oct 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
Circutor TCPRS1plus	Affected =1.0.14	Fixed in–

AI-suggested

European organizations should implement the following specific mitigations: 1) Immediately restrict access to the TCPRS1plus web interface to trusted networks and users to reduce exposure. 2) Employ web application firewalls (WAFs) with rules to detect and block framing attempts or suspicious referrers. 3) Use browser security policies or extensions that prevent clickjacking, such as enabling frame busting scripts or enforcing Content Security Policy with frame-ancestors directives if configurable. 4) Conduct user awareness training emphasizing the risks of clicking unknown links or interacting with suspicious web pages. 5) Monitor network traffic and logs for unusual access patterns to the TCPRS1plus interface. 6) Coordinate with Circutor for timely patch releases and apply updates as soon as they become available. 7) Consider isolating the management interface from general user access and enforcing multi-factor authentication to reduce impact if credentials are compromised. These steps go beyond generic advice by focusing on network segmentation, user training, and proactive monitoring tailored to the product and environment.

Description

The web application is vulnerable to a so-called ‘clickjacking’ attack. In this type of attack, the vulnerable page is inserted into a page controlled by the attacker in order to deceive the victim. This deception can range from making the victim click on a button to making them enter their login credentials in a form that, a priori, appears legitimate.

Impact

For European organizations, especially those in energy, utilities, and industrial sectors using Circutor TCPRS1plus, this vulnerability poses a risk of unauthorized actions performed by deceived users. Attackers could trick operators or administrators into executing commands or divulging credentials, potentially leading to unauthorized access or manipulation of energy monitoring systems. This could disrupt operational processes or lead to data breaches. Although the vulnerability does not allow direct remote code execution or system compromise without user interaction, the social engineering aspect can facilitate further attacks or lateral movement. Given the critical nature of energy infrastructure in Europe, even medium-severity vulnerabilities warrant attention. The risk is heightened in environments where users have elevated privileges or where the web interface controls critical functions. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits following disclosure.

Summary

CVE-2025-64387 identifies a clickjacking vulnerability in Circutor's TCPRS1plus web application version 1.0.14. Clickjacking occurs when an attacker embeds a legitimate web page inside an invisible or opaque frame on a malicious site, deceiving users into interacting with the embedded page unknowingly. This vulnerability stems from improper restrictions on rendered UI layers or frames (CWE-1021), meaning the application does not implement defenses such as X-Frame-Options or Content Security Policy frame-ancestors directives to prevent framing by unauthorized domains. An attacker can exploit this by crafting a malicious webpage that loads the vulnerable page in a frame and overlays deceptive UI elements, causing victims to click buttons or enter sensitive information under false pretenses. The CVSS 4.0 vector indicates the attack can be performed remotely over the network without authentication, requiring only user interaction. The impact on confidentiality is low to moderate due to potential credential theft or unauthorized actions initiated by the user. Integrity may be affected if unauthorized commands are executed via the UI. Availability impact is minimal. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and should be addressed proactively. The affected product, TCPRS1plus, is used in energy management and monitoring, which may be critical for industrial or infrastructure environments.

CWE-1021Improper Restriction of Rendered UI Layers or Frames (opens in a new tab)
Base weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.
Implementation
The use of X-Frame-Options allows developers of web content to restrict the usage of their application within the form of overlays, frames, or iFrames. The developer can indicate from which domains can frame the content.
Implementation
A developer can use a "frame-breaker" script in each page that should not be framed. This is very helpful for legacy browsers that do not support X-Frame-Options security feature previously mentioned.
Implementation
This defense-in-depth technique can be used to prevent the improper usage of frames in web applications. It prioritizes the valid sources of data to be loaded into the application through the usage of declarative policies.
OWASP Cheat Sheets
Content Security Policy (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V14.4.3 (opens in a new tab)
V14.4.7 (opens in a new tab)
Attack patterns
Clickjacking (opens in a new tab)
Flash File Overlay (opens in a new tab)
iFrame Overlay (opens in a new tab)
Task Impersonation (opens in a new tab)
Tapjacking (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 8 Nov 2025, 02:38 UTC

WeaknessesCWE-1021

Technical details

References

Community reviews

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