JetBrains Toolbox App up to 2.5 SSH Plugin certificate host validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in JetBrains Toolbox App up to 2.5. Impacted is an unknown function of the component SSH Plugin. The manipulation results in certificate host validation. This vulnerability was named CVE-2025-42921. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in JetBrains Toolbox App up to 2.5. Affected is an unknown function of the component SSH Plugin. The manipulation with an unknown input leads to a certificate host validation vulnerability. CWE is classifying the issue as CWE-297. The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host. This is going to have an impact on integrity. CVE summarizes:

In JetBrains Toolbox App before 2.6 host key verification was missing in SSH plugin

The advisory is shared for download at jetbrains.com. This vulnerability is traded as CVE-2025-42921 since 04/16/2025. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability scanner Nessus provides a plugin with the ID 234844 (JetBrains Toolbox App < 2.6 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.6 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (234844). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector (JetBrains): 🔍

CVSSv2info

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

Exploitinginfo

Class: Certificate host validation
CWE: CWE-297 / CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234844
Nessus Name: JetBrains Toolbox App < 2.6 Multiple Vulnerabilities

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Toolbox App 2.6

Timelineinfo

04/16/2025 🔍
04/17/2025 +1 days 🔍
04/17/2025 +0 days 🔍
04/26/2025 +9 days 🔍

Sourcesinfo

Advisory: jetbrains.com
Status: Confirmed

CVE: CVE-2025-42921 (🔍)
GCVE (CVE): GCVE-0-2025-42921
GCVE (VulDB): GCVE-100-305508

Entryinfo

Created: 04/17/2025 18:41
Updated: 04/26/2025 04:22
Changes: 04/17/2025 18:41 (64), 04/26/2025 04:22 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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