CVE-2024-37187

Credential disclosure via reversible Base64 encoding

Published Sep 27, 2024 · Updated Sep 27, 2024

Weak credential encoding in all versions of Advantech ADAM-5550 allows physically proximate attackers to read user credentials. The device shares credentials with users by applying reversible Base64 encoding instead of cryptographic protection. Exploitation requires an adjacent position and active interaction by a legitimate user; the reported effect is credential disclosure only.

CVSS severity6.8
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Weak credential encoding in all versions of Advantech ADAM-5550 allows physically proximate attackers to read user credentials. The device shares credentials with users by applying reversible Base64 encoding instead of cryptographic protection. Exploitation requires an adjacent position and active interaction by a legitimate user; the reported effect is credential disclosure only.

The record

CVE
CVE-2024-37187
Published
Sep 27, 2024
Updated
Sep 27, 2024
Vendor
Advantech
Product
ADAM-5550
Classifications
CWE-261, CWE-522, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=all versions

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Advantech · ADAM-5550version=all versions

Published CVSS scores

5.7ICS-CERTCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.8ICS-CERTCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.7NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:R/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.

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

No observations available

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

Weakness, pattern, technique

CWE-261Weak Encoding for Password
CWE-522Insufficiently Protected Credentials
T1557Adversary-in-the-Middle

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo