CVE-2025-40896Lack of TLS certificate validation when connecting Arc to a Guardian or CMC, in Arc before v2.2.0
Updated under an hour ago ()
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It affects Nozomi Networks Arc and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-295
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Nozomi
- NVD analysis
- Analyzed
- Record last updated
- Mar 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Nozomi Networks Arc nozomi_networks:arc (from the name) | before 2.2.0 | CNA record |
nozominetworks arc nozominetworks:arc | before 2.2.0 | NVD |
References
- https://security.nozominetworks.com/NN-2025:18-01vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.