How severe is CVE-2022-3353?

CVE-2022-3353 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-3353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-3353?

CVE-2022-3353 primarily affects Hitachienergy Sys600 Firmware. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-3353?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-3353 published?

CVE-2022-3353 was published on 2023-02-21 and last updated on 2026-06-17.

CVE-2022-3353

CVE-2022-3353 is a medium-severity vulnerability in Hitachienergy Sys600 Firmware with a CVSS 3.x base score of 5.9. 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-404.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-404
Affected product: Hitachienergy Sys600 Firmware
Published: 2023-02-21
Last modified: 2026-06-17

Description

A vulnerability exists in the IEC 61850 communication stack that affects multiple Hitachi Energy products. An attacker could exploit the vulnerability by using a specially crafted message sequence, to force the IEC 61850 MMS-server communication stack, to stop accepting new MMS-client connections. Already existing/established client-server connections are not affected. List of affected CPEs: * cpe:2.3:o:hitachienergy:fox61x_tego1:r15b08:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r2a16_3:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r2a16:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1e01:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1d02:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1c07:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1b02:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:gms600:1.3.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.1.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.5.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.6.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.6.0.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.7.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.7.2:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.8.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.1.0.4:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.1.0.5:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.4:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.4.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:mms:2.2.3:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:pwc600:1.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:pwc600:1.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:pwc600:1.2:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:reb500:7:*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:reb500:8:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:1.2.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:2.0.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:1.1.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:1.3.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:2.1.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:2.1.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relionSAM600-IO:2.2.1:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relionSAM600-IO:2.2.5:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:2.2.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:2.2.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:rtu500cmu:12.*.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:rtu500cmu:13.*.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:txpert_hub_coretec_4:2.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:txpert_hub_coretec_4:3.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:txpert_hub_coretec_5:3.0:*:*:*:*:*:*:*

Frequently asked questions

What is CVE-2022-3353?: A vulnerability exists in the IEC 61850 communication stack that affects multiple Hitachi Energy products. An attacker could exploit the vulnerability by using a specially crafted message sequence, to force the IEC 61850 MMS-server communication stack, to stop accepting new MMS-client connections. Already existing/established client-server connections are not affected. List of affected CPEs: * cpe:2.3:o:hitachienergy:fox61x_tego1:r15b08:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r2a16_3:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r2a16:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1e01:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1d02:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1c07:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1b02:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:gms600:1.3.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.1.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.5.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.6.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.6.0.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.7.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.7.2:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.8.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.1.0.4:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.1.0.5:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.4:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:microscada_x_sys600:10.4.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:mms:2.2.3:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:pwc600:1.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:pwc600:1.1:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:pwc600:1.2:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:reb500:7:*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:reb500:8:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:1.2.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:2.0.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:1.1.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:1.3.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:2.1.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:2.1.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relionSAM600-IO:2.2.1:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relionSAM600-IO:2.2.5:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion670:2.2.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:relion650:2.2.*:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:rtu500cmu:12.*.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:rtu500cmu:13.*.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:txpert_hub_coretec_4:2.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:txpert_hub_coretec_4:3.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:txpert_hub_coretec_5:3.0:*:*:*:*:*:*:*
How severe is CVE-2022-3353?: CVE-2022-3353 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-3353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-3353?: CVE-2022-3353 primarily affects Hitachienergy Sys600 Firmware. In total, 56 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-3353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-3353 published?: CVE-2022-3353 was published on 2023-02-21 and last updated on 2026-06-17.

References

Affected products (56)

cpe:2.3:o:hitachienergy:sys600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:rtu500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:rtu500_firmware:13.4.1:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:reb500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:pwc600_firmware:1.0:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:pwc600_firmware:1.1:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:pwc600_firmware:1.2:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:modular_switchgear_monitoring_firmware:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.6.0.1:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:itt600_sa_explorer:2.1.0.5:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_sam600-io_firmware:2.2.1:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_sam600-io_firmware:2.2.5:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:1.1:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:1.3:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.1:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.0:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.1:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.2:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.3:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.4:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_650_firmware:2.2.5:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_670_firmware:1.2:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_670_firmware:2.0:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:relion_670_firmware:2.1:*:*:*:*:*:*:*

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