Vulnerability in 2n Access Unit 2.0
CVE-2021-31399
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.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- 2n Access Unit 2.0
- 2n Access Unit 2.0 Firmware — versions 2.31.0.40.5
Weakness classification (CWE)
References
- www.2n.cz/en_GB/products/ip-access-control/2n-access-unit-2 (Vendor Advisory)
- excellium-services.com/cert-xlm-advisory/cve-2021-31399/ (Third Party Advisory)
- cds.thalesgroup.com/en/tcs-cert/CVE-2021-31399
Frequently asked questions
- What is CVE-2021-31399?
- CVE-2021-31399 is a medium-severity vulnerability in 2n Access Unit 2.0, classified under Improper Certificate Validation. CVSS score: 4.6/10. Published 2021-08-13.
- How severe is CVE-2021-31399?
- Medium severity. CVSS v3 base score is 4.6 out of 10.