What is CVE-2021-33003?

CVE-2021-33003 is a medium-severity vulnerability in Deltaww Diaenergie, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 5.5/10. Published 2021-08-30.

How severe is CVE-2021-33003?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-33003 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Deltaww Diaenergie

CVE-2021-33003

Delta Electronics DIAEnergie Version 1.7.5 and prior may allow an attacker to retrieve passwords in cleartext due to a weak hashing algorithm.

Published 2021-08-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (5.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Deltaww Diaenergie
Delta Electronics Diaenergie — versions DIAEnergie Version 1.7.5 and prior

Weakness classification (CWE)

Public proof-of-concept exploits

n0-traces/cve_

References

us-cert.cisa.gov/ics/advisories/icsa-21-238-03 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33003?: CVE-2021-33003 is a medium-severity vulnerability in Deltaww Diaenergie, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 5.5/10. Published 2021-08-30.
How severe is CVE-2021-33003?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-33003 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.