How severe is CVE-2021-35529?

CVE-2021-35529 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-35529 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35529?

CVE-2021-35529 primarily affects Hitachienergy Counterparty Settlement And Billing. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-35529?

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-2021-35529 published?

CVE-2021-35529 was published on 2021-08-20 and last updated on 2026-06-17.

CVE-2021-35529

CVE-2021-35529 is a high-severity vulnerability in Hitachienergy Counterparty Settlement And Billing with a CVSS 3.x base score of 7.7. 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 7.7)
CVSS v2: 6.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Hitachienergy Counterparty Settlement And Billing
Published: 2021-08-20
Last modified: 2026-06-17

Description

Insufficiently Protected Credentials vulnerability in client environment of Hitachi ABB Power Grids Retail Operations and Counterparty Settlement Billing (CSB) allows an attacker or unauthorized user to access database credentials, shut down the product and access or alter. This issue affects: Hitachi ABB Power Grids Retail Operations version 5.7.2 and prior versions. Hitachi ABB Power Grids Counterparty Settlement Billing (CSB) version 5.7.2 and prior versions.

Frequently asked questions

What is CVE-2021-35529?: Insufficiently Protected Credentials vulnerability in client environment of Hitachi ABB Power Grids Retail Operations and Counterparty Settlement Billing (CSB) allows an attacker or unauthorized user to access database credentials, shut down the product and access or alter. This issue affects: Hitachi ABB Power Grids Retail Operations version 5.7.2 and prior versions. Hitachi ABB Power Grids Counterparty Settlement Billing (CSB) version 5.7.2 and prior versions.
How severe is CVE-2021-35529?: CVE-2021-35529 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-35529 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35529?: CVE-2021-35529 primarily affects Hitachienergy Counterparty Settlement And Billing. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-35529?: 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-2021-35529 published?: CVE-2021-35529 was published on 2021-08-20 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:hitachienergy:counterparty_settlement_and_billing:*:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:retail_operations:*:*:*:*:*:*:*:*

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