BeyondTrust Remote Support and Privileged Remote Access up to 25.3.2/26.2.0 denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k1.77+

Summaryinfo

A vulnerability marked as problematic has been reported in BeyondTrust Remote Support and Privileged Remote Access up to 25.3.2/26.2.0. Affected is an unknown function. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2026-40140. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in BeyondTrust Remote Support and Privileged Remote Access up to 25.3.2/26.2.0. It has been classified as problematic. This affects an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

BeyondTrust Remote Support and Privileged Remote Access contain a high-severity pre-authentication vulnerability in the network communication subsystem. Insufficient validation of client-supplied input may allow an unauthenticated remote attacker to trigger a denial-of-service condition affecting appliance availability.

The advisory is shared at beyondtrust.com. This vulnerability is uniquely identified as CVE-2026-40140 since 04/09/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 25.3.3 or 26.2.1 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: Remote Support and Privileged Remote Access 25.3.3/26.2.1

Timelineinfo

04/09/2026 CVE reserved
07/06/2026 +88 days Advisory disclosed
07/06/2026 +0 days VulDB entry created
07/06/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: beyondtrust.com
Status: Confirmed

CVE: CVE-2026-40140 (🔒)
GCVE (CVE): GCVE-0-2026-40140
GCVE (VulDB): GCVE-100-376485

Entryinfo

Created: 07/06/2026 19:01
Changes: 07/06/2026 19:01 (52)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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