What’s Vulnerable › Vulnerabilities

CVE-2022-30264

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-16 · updated 2026-06-17
• Weakness: CWE-345

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.

Affected products

• Emerson Dl8000 Firmware: through 2022-05-02
• Emerson Fb3000 Rtu Firmware: through 2022-05-02
• Emerson Roc800L Firmware: through 2022-05-02
• Emerson Roc809 Firmware: before 2022-05-02 — fixed in 2022-05-02
• Emerson Roc827 Firmware: before 2022-05-02 — fixed in 2022-05-02

How to fix

Upgrade to a fixed version: Emerson Roc809 Firmware 2022-05-02; Emerson Roc827 Firmware 2022-05-02. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-22-223-04
• https://www.forescout.com/blog/
• https://www.cisa.gov/uscert/ics/advisories/icsa-22-223-04
• https://www.forescout.com/blog/

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