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TI-2020-04298 Aliases CVE-2020-5242

openHAB exec add-ons allow remote arbitrary command execution

Priority MEDIUM 42CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

openHAB before 2.5.2 allow a remote attacker to use REST calls to install the EXEC binding or EXEC transformation service and execute arbitrary commands on the system with the privileges of the user running openHAB. Starting with version 2.5.2 all commands need to be whitelisted in a local file which cannot be changed via REST calls.

Why it matters now

EPSS 0.01973 80th percentileScored 2026-11-07
Fix Fixed openhab-addons (openhab): 2.5.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
openhabopenhab-addonsbefore 2.5.22.5.2Patch availableCNA
  • openhab-addons Vendoropenhab Affected before 2.5.2 Fixed in 2.5.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openhab:openhab:*:*:*:*:*:*:*:*before 2.5.2Vulnerableopenhab
  • cpe:2.3:a:openhab:openhab:*:*:*:*:*:*:*:* Versions before 2.5.2 Vulnerable ·openhab

Remediation

  • Fix · CNA openhab-addons (openhab) Fixed in 2.5.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-5242

References

  • TI-2024-28437 CometVisu Backend for openHAB affected by RCE through path traversal CVSS 3.1CRITICAL 9.8
  • TI-2024-28438 CometVisu Backend for openHAB has a sensitive information disclosure vulnerability CVSS 3.1CRITICAL 9.1
  • TI-2024-28436 Path traversal (CometVisu) CVSS 3.1HIGH 7.5
  • TI-2021-04367 XXE vulnerability in OpenHAB CVSS 3.1MEDIUM 6.4

Sources

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