CVE-2023-39982

mediumpriority · track · 24OT risk · elevatedEPSS 0.004 · 38 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.44% (38th) EPSS

CVSS 5.9 · medium

Is it mine?

3 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A vulnerability has been identified in MXsecurity versions prior to v1.0.1. The vulnerability may put the confidentiality and integrity of SSH communications at risk on the affected device. This vulnerability is attributed to a hard-coded SSH host key, which might facilitate man-in-the-middle attacks and enable the decryption of SSH traffic.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.4–7.5

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@moxa.comexploitability 3.9 · impact 3.6

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-798USprimaryCWE-321USCWE-798US

affected products (3)

Products and version ranges known to be affected.

Moxa MXsecurity Series≤ 1.0 ≤1.0.1enisa_euvdEU
Moxa Inc. MXsecurity≤ 1.0.1fstec_bduRU
moxa mxsecurity≤ 1.0.1nvdUScpe:2.3:a:moxa:mxsecurity:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2246Moxa MXsecurity: Mehrere SchwachstellenDeutsch2023-08-31csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Moxa MXsecurity ausnutzen, um Sicherheitsmaßnahmen zu umgehen und vertrauliche Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd cert_bund NVD CVE.org MITRE

published 2023-09-02modified 2026-06-17

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+2277 more

references (4)

External citations — patches, advisories, analysis.

scry

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