CVE-2020-5242 json
openHAB exec add-ons allow remote arbitrary command execution
published 2020-02-20 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26459
- cvss
- 7.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
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.
Patch / fix
Exploit prediction
1.97% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- openhab openhab-addons
Classification
References
-
github.com
/openhab/openhab-addons/commit/4c4cb664f2e2c3866aadf117d22fb54aa8dd0031
patch, third-party-advisory
-
github.com
/openhab/openhab-addons/security/advisories/GHSA-w698-693g-23hv
third-party-advisory
Sources
- CVE List CVE-2020-5242
- NVD CVE-2020-5242
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