How severe is CVE-2021-34588?

CVE-2021-34588 has a CVSS 3.x base score of 8.6, 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-2021-34588 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34588?

CVE-2021-34588 primarily affects Bender Cc612 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-34588?

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-2021-34588 published?

CVE-2021-34588 was published on 2022-04-27 and last updated on 2026-06-17.

CVE-2021-34588

CVE-2021-34588 is a high-severity vulnerability in Bender Cc612 Firmware with a CVSS 3.x base score of 8.6. 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-425.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 5.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-425
Affected product: Bender Cc612 Firmware
Published: 2022-04-27
Last modified: 2026-06-17

Description

In Bender/ebee Charge Controllers in multiple versions are prone to unprotected data export. Backup export is protected via a random key. The key is set at user login. It is empty after reboot .

Frequently asked questions

What is CVE-2021-34588?: In Bender/ebee Charge Controllers in multiple versions are prone to unprotected data export. Backup export is protected via a random key. The key is set at user login. It is empty after reboot .
How severe is CVE-2021-34588?: CVE-2021-34588 has a CVSS 3.x base score of 8.6, 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-2021-34588 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34588?: CVE-2021-34588 primarily affects Bender Cc612 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-34588?: 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-2021-34588 published?: CVE-2021-34588 was published on 2022-04-27 and last updated on 2026-06-17.

References

https://cert.vde.com/en/advisories/VDE-2021-047

Affected products (2)

cpe:2.3:o:bender:cc612_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:bender:icc15xx_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Bender Cc612 Firmware

CVE-2021-34601 — Critical (CVSS 9.8): In Bender/ebee Charge Controllers in multiple versions are prone to Hardcoded Credentials. Bender charge controller…
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