CVE-2025-26318VulnerabilityPublished 4 Mar 2025Updated 26 Aug 2025

CVE-2025-26318: TSplus Remote Access · Insertion of Sensitive Information Into Sent Data

Affects TSplus Remote AccessSource CVE Database V5

Not known to be exploited · CVSS 5.8 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

5.8Medium

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

EPSS: 0.9% chance of exploitation in 30 days – higher than 61% 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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Changed
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: 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.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Mar 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 2026-10-25.

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
TSplus TSplus Remote Access	Affected =0	Fixed in–

AI-suggested

To mitigate this vulnerability, European organizations should prioritize the following actions: 1) Upgrade TSplus Remote Access to version 17.30 or later once the vendor releases a patch addressing this issue. 2) Until a patch is available, restrict network access to the TSplus Remote Access service to trusted IP addresses and VPNs to limit exposure to potential attackers. 3) Implement network segmentation to isolate remote access servers from critical domain controllers and sensitive resources. 4) Monitor network traffic and logs for unusual requests to the hb.exe component or attempts to enumerate connected domain accounts. 5) Enforce strong multi-factor authentication (MFA) for remote access users to reduce the risk of compromised credentials being leveraged after reconnaissance. 6) Conduct regular audits of active sessions and domain account usage to detect anomalies. 7) Engage with the vendor for timely updates and verify the integrity of TSplus software installations. These steps go beyond generic advice by focusing on access control, monitoring, and proactive session management tailored to the nature of this vulnerability.

Description

hb.exe in TSplus Remote Access before 17.30 2024-10-30 allows remote attackers to retrieve a list of all domain accounts currently connected to the application.

Impact

For European organizations, this vulnerability poses a moderate risk primarily through the exposure of sensitive domain account information. Attackers gaining access to a list of connected domain accounts can perform targeted phishing, credential stuffing, or brute force attacks against these accounts. This reconnaissance capability can facilitate more sophisticated attacks such as privilege escalation or lateral movement within corporate networks. Organizations relying on TSplus Remote Access for remote work or third-party access may find their user session information exposed, increasing the risk of unauthorized access. The confidentiality breach could lead to compliance issues under GDPR, as user identity information is sensitive personal data. While the vulnerability does not directly compromise system integrity or availability, the information disclosure can be a stepping stone for more damaging attacks. European organizations with extensive remote access deployments or those in regulated sectors (finance, healthcare, government) may face heightened risks due to the sensitivity of exposed account information and potential regulatory repercussions.

CWE-201Insertion of Sensitive Information Into Sent Data (opens in a new tab)
Base weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.
Requirements
Specify which data in the software should be regarded as sensitive. Consider which types of users should have access to which types of data.
Implementation
Ensure that any possibly sensitive data specified in the requirements is verified with designers to ensure that it is either a calculated risk or mitigated elsewhere.
System Configuration
Setup default error messages so that unexpected errors do not disclose sensitive information.
OWASP Cheat Sheets
Error Handling (opens in a new tab)
Logging (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V8.3.4 (opens in a new tab)
V14.3.3 (opens in a new tab)
V7.3.3 (opens in a new tab)
Attack patterns
Choosing Message Identifier (opens in a new tab)
Exploiting Incorrectly Configured SSL/TLS (opens in a new tab)
WiFi MAC Address Tracking (opens in a new tab)
WiFi SSID Tracking (opens in a new tab)
Cellular Broadcast Message Request (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

github.com/Frozenka/CVE-2025-26318 (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Aug 2025, 20:04 UTC

WeaknessesCWE-201

Technical details

References

Community reviews

Related threats