CVE-2025-40896

MediumCVSS 4.8/10Last modified Jun 17, 2026

Description

The server certificate was not verified when an Arc agent connected to a Guardian or CMC.

A malicious actor could perform a man-in-the-middle attack and intercept the communication between the Arc agent and the Guardian or CMC. This could result in theft of the client token and sensitive information (such as assets and alerts), impersonation of the server, or injection of spoofed data (such as false asset information or vulnerabilities) into the Guardian or CMC.

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 4, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2025

CVE-2025-408978.1An access control vulnerability was discovered in the Threat Intelligence functionality due to a specific access restriction not being propeCVE-2025-408988.1A path traversal vulnerability was discovered in the Import Arc data archive functionality due to insufficient validation of the input file.CVE-2025-408998.9A Stored Cross-Site Scripting vulnerability was discovered in the Assets and Nodes functionality due to improper validation of an input paraCVE-2025-40905.3A vulnerability existed in Thunderbird for Android where potentially sensitive library locations were logged via Logcat. This vulnerability CVE-2025-409004.6An Angular template injection vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. AnCVE-2025-409014.8A Stored HTML Injection vulnerability was discovered in the Credentials Manager functionality due to improper validation of an input parametCVE-2025-409024.8A Stored HTML Injection vulnerability was discovered in the Users functionality due to improper validation of an input parameter. An authentCVE-2025-409034.8A Stored HTML Injection vulnerability was discovered in the Schedule Restore Archive functionality due to improper validation of an input paCVE-2025-409045.4A Stored HTML Injection vulnerability was discovered in the Smart Polling functionality due to improper validation of an input parameter. AnCVE-2025-409057.3WWW::OAuth 1.000 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for CVE-2025-409069.8BSON::XS versions 0.8.4 and earlier for Perl includes a bundled libbson 1.1.7, which has several vulnerabilities. Those include CVE-2017-14CVE-2025-409075.3FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library. The included FastCGI libra
CVE-2025-40896: Medium severity, CVSS 4.8 | Vulnix