How severe is CVE-2021-26845?

CVE-2021-26845 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-26845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26845?

CVE-2021-26845 affects Hitachienergy Esoms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26845?

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

When was CVE-2021-26845 published?

CVE-2021-26845 was published on 2021-06-14 and last updated on 2026-06-17.

CVE-2021-26845

CVE-2021-26845 is a high-severity vulnerability in Hitachienergy Esoms with a CVSS 3.x base score of 7.5. 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-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Hitachienergy Esoms
Published: 2021-06-14
Last modified: 2026-06-17

Description

Information Exposure vulnerability in Hitachi ABB Power Grids eSOMS allows unauthorized user to gain access to report data if the URL used to access the report is discovered. This issue affects: Hitachi ABB Power Grids eSOMS 6.0 versions prior to 6.0.4.2.2; 6.1 versions prior to 6.1.4; 6.3 versions prior to 6.3.

Frequently asked questions

What is CVE-2021-26845?: Information Exposure vulnerability in Hitachi ABB Power Grids eSOMS allows unauthorized user to gain access to report data if the URL used to access the report is discovered. This issue affects: Hitachi ABB Power Grids eSOMS 6.0 versions prior to 6.0.4.2.2; 6.1 versions prior to 6.1.4; 6.3 versions prior to 6.3.
How severe is CVE-2021-26845?: CVE-2021-26845 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-26845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26845?: CVE-2021-26845 affects Hitachienergy Esoms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26845?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-26845 published?: CVE-2021-26845 was published on 2021-06-14 and last updated on 2026-06-17.

References

https://search.abb.com/library/Download.aspx?DocumentID=9AKK107991A8942&LanguageCode=en&DocumentPartId=&Action=Launch

Affected products (1)

cpe:2.3:a:hitachienergy:esoms:*:*:*:*:*:*:*:*

More vulnerabilities in Hitachienergy Esoms

CVE-2018-14805 — Critical (CVSS 9.8): ABB eSOMS version 6.0.2 may allow unauthorized access to the system when LDAP is set to allow anonymous authentication,…
CVE-2019-19094 — High (CVSS 7.6): Lack of input checks for SQL queries in ABB eSOMS versions 3.9 to 6.0.3 might allow an attacker SQL injection attacks…
CVE-2021-35527 — High (CVSS 7.5): Password autocomplete vulnerability in the web application password field of Hitachi ABB Power Grids eSOMS allows…
CVE-2019-19093 — Medium (CVSS 6.5): eSOMS versions 4.0 to 6.0.3 do not enforce password complexity settings, potentially resulting in lower access security…
CVE-2019-19001 — Medium (CVSS 6.5): For ABB eSOMS versions 4.0 to 6.0.2, the X-Frame-Options header is not configured in HTTP response. This can…
CVE-2019-19000 — Medium (CVSS 6.5): For ABB eSOMS 4.0 to 6.0.3, the Cache-Control and Pragma HTTP header(s) have not been properly configured within the…

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