Medium severity4.6NVD Advisory· Published Aug 13, 2021· Updated Jun 17, 2026
CVE-2021-31399
CVE-2021-31399
Description
On 2N Access Unit 2.0 2.31.0.40.5 devices, an attacker can pose as the web relay for a man-in-the-middle attack.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- 2N/Access Unitdescription
Patches
Vulnerability mechanics
References
3- excellium-services.com/cert-xlm-advisory/cve-2021-31399/nvdThird Party Advisory
- www.2n.cz/en_GB/products/ip-access-control/2n-access-unit-2nvdVendor Advisory
- cds.thalesgroup.com/en/tcs-cert/CVE-2021-31399nvd
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