How severe is CVE-2021-32955?

CVE-2021-32955 has a CVSS 3.x base score of 9.8, 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-2021-32955 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32955?

CVE-2021-32955 affects Deltaww Diaenergie. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32955?

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-2021-32955 published?

CVE-2021-32955 was published on 2021-08-30 and last updated on 2026-06-17.

CVE-2021-32955

CVE-2021-32955 is a critical-severity vulnerability in Deltaww Diaenergie with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 37% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Deltaww Diaenergie
Published: 2021-08-30
Last modified: 2026-06-17

Description

Delta Electronics DIAEnergie Version 1.7.5 and prior allows unrestricted file uploads, which may allow an attacker to remotely execute code.

Frequently asked questions

What is CVE-2021-32955?: Delta Electronics DIAEnergie Version 1.7.5 and prior allows unrestricted file uploads, which may allow an attacker to remotely execute code.
How severe is CVE-2021-32955?: CVE-2021-32955 has a CVSS 3.x base score of 9.8, 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-2021-32955 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32955?: CVE-2021-32955 affects Deltaww Diaenergie. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32955?: 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-2021-32955 published?: CVE-2021-32955 was published on 2021-08-30 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-238-03

Affected products (1)

cpe:2.3:a:deltaww:diaenergie:*:*:*:*:*:*:*:*

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