9.3

CVE-2026-43844: advantech adam-3600 Improper Authentication

CVSS: 9.3v4.0CriticalDeferred
Published 20-10-2026Last modified 20-10-2026
Open JSON

Vulnerability summary

CVE-2026-43844 is a critical (CVSS 9.3) Improper Authentication vulnerability in advantech adam-3600. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.41%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-10-2026
    PublishedVulnerability first disclosed.
  2. 20-10-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability in the proprietary protocol could allow an attacker to bypass the authentication mechanism.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

20-10-202621-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Advantech1 product

1 vendor · 1 product

References

2 links