CVE-2022-30264

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.

Published: 2022-08-16 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-30264 is rated Moderate Risk (50.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.40%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-30264

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.10% 0.40% +0.30%
2 2025-03-17 0.27% 0.10% -0.16%
3 2024-12-17 — 0.27% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-30264

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2022-30264

Affected software / configurations for CVE-2022-30264

Vendor Product Version Raw CPE
emerson dl8000_firmware <= 2022-05-02 cpe:2.3:o:emerson:dl8000_firmware:*:*:*:*:*:*:*:*
emerson roc809_firmware < 2022-05-02 cpe:2.3:o:emerson:roc809_firmware:*:*:*:*:*:*:*:*
emerson roc800l_firmware <= 2022-05-02 cpe:2.3:o:emerson:roc800l_firmware:*:*:*:*:*:*:*:*
emerson fb3000_rtu_firmware <= 2022-05-02 cpe:2.3:o:emerson:fb3000_rtu_firmware:*:*:*:*:*:*:*:*
emerson roc827_firmware < 2022-05-02 cpe:2.3:o:emerson:roc827_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-30264

URL Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-22-223-04 Mitigation Third Party Advisory US Government Resource
https://www.forescout.com/blog/ Third Party Advisory
cvelogic Threat Intelligence