CVE-2022-40693Public exploitNetwork attack vector

Credential disclosure via cleartext web login

Published Feb 7, 2023 · Updated Aug 3, 2024

Cleartext transmission in Moxa SDS-3008 Series 2.1 and earlier allows remote attackers to read administrator credentials via HTTP traffic. The web application's default configuration sends login account names and passwords in an unencrypted request and leaves HTTP enabled. An attacker able to sniff the management network can recover those credentials; no authentication or user interaction is required.

CVSS severity7.5
High
EPSS probability0.65%
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 Moxa SDS-3008 Series 2.1 and earlier allows remote attackers to read administrator credentials via HTTP traffic. The web application's default configuration sends login account names and passwords in an unencrypted request and leaves HTTP enabled. An attacker able to sniff the management network can recover those credentials; no authentication or user interaction is required.

The record

CVE
CVE-2022-40693
Published
Feb 7, 2023
Updated
Aug 3, 2024
Vendor
Moxa
Product
SDS-3008 Series
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moxa · SDS-3008 Seriesversion=2.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9Cisco TalosCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

Public exploit references

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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