CVE-2020-4092Network attack vector

Sensitive-data exposure via unencrypted Domino communications

Published May 6, 2020 · Updated Aug 4, 2024

Cleartext transmission in HCL Nomad Android and iOS releases allows attackers to read Domino data from unencrypted network traffic. When Domino port encryption is disabled, the client opens its server channel in cleartext and provides no interface to request encryption. Attackers positioned to capture that traffic can read server names, user IDs, and document content; integrity and availability are unaffected.

CVSS severity5.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in HCL Nomad Android and iOS releases allows attackers to read Domino data from unencrypted network traffic. When Domino port encryption is disabled, the client opens its server channel in cleartext and provides no interface to request encryption. Attackers positioned to capture that traffic can read server names, user IDs, and document content; integrity and availability are unaffected.

The record

CVE
CVE-2020-4092
Published
May 6, 2020
Updated
Aug 4, 2024
Vendor
HCLSoftware
Product
HCL Nomad
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 6, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion="Android versions 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, and iOS versions 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8"

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCLSoftware · HCL Nomadversion="Android versions 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, and iOS versions 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8"

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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