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TI-2026-76736 Aliases CVE-2026-43846GHSA-5gcg-wr39-2gh3

Stack buffer overflow in Advantech ADAM-3600 allows code execution

Priority MEDIUM 40CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

CWE-121 stack-based buffer overflow in Advantech ADAM-3600 versions prior to 2.8.5.0 lets an authenticated attacker achieve code execution through a non-functional feature. CVSS 4.0 scores it 8.6 (HIGH). CISA's SSVC assessment lists exploitation as none and automatable as no, and CVE-2026-43846 is not in KEV.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A stack-based buffer overflow vulnerability in a non-functional feature could allow an authenticated attacker to achieve code execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00458 39th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdvantechADAM-3600prior to version 2.8.5.0—No fix listedCNA
  • ADAM-3600 VendorAdvantech Affected prior to version 2.8.5.0 Fixed in — No fix listed CNA

Remediation

Update ADAM-3600 to version 2.8.5.0 or later, the first version outside the affected range. The sources list no fixed version for this product, so confirm the fixed build with Advantech before deploying.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-20 Threatist record created from CVE-2026-43846
  2. 2026-10-20 Alias added: GHSA-5gcg-wr39-2gh3
  3. 2026-10-20 Weakness changed · CISA ADP
  4. 2026-10-20 CISA SSVC decision points changed
  5. 2026-10-20 Priority changed: MEDIUM → LOW
  6. 2026-10-25 Priority changed: LOW → MEDIUM

References

Advisory 1

Other 1

  • TI-2022-01984 Command injection in Advantech iView CVSS 3.1CRITICAL 9.8
  • TI-2025-24399 Advantech WISE-DeviceOn Server < 5.4 Hard-coded JWT Key Authentication Bypass CVSS 4.0CRITICAL 10.0
  • TI-2023-05193 Advantech R-SeeNet Unauthenticated Read/Write CVSS 3.1CRITICAL 9.8
  • TI-2016-00768 Unrestricted file upload vulnerability in the uploadImageCommon function in the… CVSS 3.0CRITICAL 9.8
  • TI-2021-04850 OS command injection in Advantech CVSS 3.1CRITICAL 9.8
  • TI-2026-55194 Advantech WISE-6610-NB Node-RED nodered_lib_apply command injection CVSS 4.0CRITICAL 9.4
See all 433 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences