How severe is CVE-2021-35527?

CVE-2021-35527 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-2021-35527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35527?

CVE-2021-35527 affects Hitachienergy Esoms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-35527?

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-2021-35527 published?

CVE-2021-35527 was published on 2021-07-14 and last updated on 2026-06-17.

CVE-2021-35527

CVE-2021-35527 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-522.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Hitachienergy Esoms
Published: 2021-07-14
Last modified: 2026-06-17

Description

Password autocomplete vulnerability in the web application password field of Hitachi ABB Power Grids eSOMS allows attacker to gain access to user credentials that are stored by the browser. This issue affects: Hitachi ABB Power Grids eSOMS version 6.3 and prior versions.

Frequently asked questions

What is CVE-2021-35527?: Password autocomplete vulnerability in the web application password field of Hitachi ABB Power Grids eSOMS allows attacker to gain access to user credentials that are stored by the browser. This issue affects: Hitachi ABB Power Grids eSOMS version 6.3 and prior versions.
How severe is CVE-2021-35527?: CVE-2021-35527 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-2021-35527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35527?: CVE-2021-35527 affects Hitachienergy Esoms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-35527?: 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-2021-35527 published?: CVE-2021-35527 was published on 2021-07-14 and last updated on 2026-06-17.

References

https://search.abb.com/library/Download.aspx?DocumentID=9AKK107992A0957&LanguageCode=en&DocumentPartId=&Action=Launch

Affected products (1)

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

More vulnerabilities in Hitachienergy Esoms

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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…
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