CVE-2022-30264
The Emerson ROC and FloBoss RTU product lines through 2022-05-02 perform insecure filesystem operations.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Emerson ROC and FloBoss RTU product lines through 2022-05-02 perform insecure filesystem operations. They utilize the ROC protocol (4000/TCP, 5000/TCP) for communications between a master terminal and RTUs. Opcode 203 of this protocol allows a master terminal to transfer files to and from the flash filesystem and carrying out arbitrary file and directory read, write, and delete operations.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.53% probability · 45th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-345
- Affected
- emerson/dl8000 firmware · emerson/roc809 firmware · emerson/roc800l firmware · emerson/fb3000 rtu firmware · emerson/roc827 firmware
- Source
- cve@mitre.org
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-223-04Mitigation, Third Party Advisory, US Government Resource
- https://www.forescout.com/blog/Third Party Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-223-04Mitigation, Third Party Advisory, US Government Resource
- https://www.forescout.com/blog/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.