How do I check whether I am affected by CVE-2026-43834?

Check the ADAM-3600 firmware version in the device web UI/EdgeLink; versions below 2.8.5.0 are affected. Also check whether the management interface is reachable from untrusted networks.

What is the fix for CVE-2026-43834?

Upgrade ADAM-3600 firmware to 2.8.5.0 or later (see Advantech security advisory ACIRT-261001). Restrict network access to the management interface and use strong admin credentials.

Who is not affected by CVE-2026-43834?

Not affected if: auth-required, management-interface-not-reachable.

Live › vulnerability › CVE-2026-43834

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high7.5Other

Stack buffer overflow in logs settings lets authenticated attacker run code

Authenticated stack buffer overflow in the logs settings function of Advantech ADAM-3600 EdgeLink firmware before 2.8.5.0 allows code execution. Found by Nozomi Networks; fixed by Advantech on 2026-10-15; no known exploitation.

Summary written from the sources below. Check the originals before acting.

CVSS 4.0

7.5

high

scored by 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 25, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is high, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: Not known from the sources.
Worst case: Attacker runs code after logging in.
CVSS said: 7.5. The facts above say medium; we keep the sources' high until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

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Live › vulnerability › CVE-2026-43834

Go to dashboard

high7.5Other

Stack buffer overflow in logs settings lets authenticated attacker run code

Summary written from the sources below. Check the originals before acting.

CVSS 4.0

7.5

high

scored by 5f57b9bf-260d-4433-bf07-b6a79e9bb7d4

known so far5 of 6

missing: exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 25, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is high, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: Yes.
Needs a special setup: Not known from the sources.
Reachable from: Not known from the sources.
Worst case: Attacker runs code after logging in.
CVSS said: 7.5. The facts above say medium; we keep the sources' high until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Stack buffer overflow in logs settings lets authenticated attacker run code

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

Stack buffer overflow in logs settings lets authenticated attacker run code

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

How to check

The fix

Who had it, and when

What the sources say, verbatim

Sources