CVE-2022-40691Public exploitNetwork attack vector

Unauthenticated source disclosure via suffixed ASP paths

Published Feb 7, 2023 · Updated Aug 3, 2024

Information disclosure in Moxa SDS-3008 Series firmware 2.1 and earlier allows remote attackers to read ASP source via crafted HTTP requests. The web server embeds an ASP page's source code in its response when a slash or backslash is appended to the page URL. No authentication or user interaction is required, and the returned source can expose sensitive web-application information.

CVSS severity5.3
Medium
EPSS probability1.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Moxa SDS-3008 Series firmware 2.1 and earlier allows remote attackers to read ASP source via crafted HTTP requests. The web server embeds an ASP page's source code in its response when a slash or backslash is appended to the page URL. No authentication or user interaction is required, and the returned source can expose sensitive web-application information.

The record

CVE
CVE-2022-40691
Published
Feb 7, 2023
Updated
Aug 3, 2024
Vendor
Moxa
Product
SDS-3008
Classifications
CWE-200, T1190
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=0 <=2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moxa · SDS-3008version=0 <=2.1
Moxa · SDS-3008-Tversion=0 <=2.1
Moxa · SDS-3008 Seriesversion=2.1

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3Cisco TalosCVSS:3.0/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1190Exploit Public-Facing Application

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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