How severe is CVE-2019-18253?

CVE-2019-18253 has a CVSS 3.x base score of 10.0, 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-2019-18253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18253?

CVE-2019-18253 affects Hitachienergy Relion 670 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18253?

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-2019-18253 published?

CVE-2019-18253 was published on 2019-11-27 and last updated on 2026-06-17.

CVE-2019-18253

CVE-2019-18253 is a critical-severity vulnerability in Hitachienergy Relion 670 Firmware with a CVSS 3.x base score of 10.0. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Hitachienergy Relion 670 Firmware
Published: 2019-11-27
Last modified: 2026-06-17

Description

An attacker could use specially crafted paths in a specific request to read or delete files from Relion 670 Series (versions 1p1r26, 1.2.3.17, 2.0.0.10, RES670 2.0.0.4, 2.1.0.1, and prior) outside the intended directory.

Frequently asked questions

What is CVE-2019-18253?: An attacker could use specially crafted paths in a specific request to read or delete files from Relion 670 Series (versions 1p1r26, 1.2.3.17, 2.0.0.10, RES670 2.0.0.4, 2.1.0.1, and prior) outside the intended directory.
How severe is CVE-2019-18253?: CVE-2019-18253 has a CVSS 3.x base score of 10.0, 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-2019-18253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18253?: CVE-2019-18253 affects Hitachienergy Relion 670 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18253?: 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-2019-18253 published?: CVE-2019-18253 was published on 2019-11-27 and last updated on 2026-06-17.

References

https://www.us-cert.gov/ics/advisories/icsa-19-330-01

Affected products (1)

cpe:2.3:o:hitachienergy:relion_670_firmware:*:*:*:*:*:*:*:*

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