How severe is CVE-2022-30264?

CVE-2022-30264 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-30264 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-30264?

CVE-2022-30264 primarily affects Emerson Dl8000 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-30264?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-30264 published?

CVE-2022-30264 was published on 2022-08-16 and last updated on 2026-06-17.

CVE-2022-30264

CVE-2022-30264 is a critical-severity vulnerability in Emerson Dl8000 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-345.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Emerson Dl8000 Firmware
Published: 2022-08-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2022-30264?: CVE-2022-30264 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-30264 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-30264?: CVE-2022-30264 primarily affects Emerson Dl8000 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-30264?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-30264 published?: CVE-2022-30264 was published on 2022-08-16 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:emerson:dl8000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:emerson:roc809_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:emerson:roc800l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:emerson:fb3000_rtu_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:emerson:roc827_firmware:*:*:*:*:*:*:*:*

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