CVE-2021-43989

HIGHNVD 7.57.5—

7.5

mySCADA myPRO Versions 8.20.0 and prior stores passwords using MD5, which may allow an attacker to crack the previously retrieved password hashes.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 26.5%
KEV: Not listed

Published

December 23, 2021

Last Modified

November 21, 2024

References (2)

ics-cert@hqhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-355-01
af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-01

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 05:50 UTCEG score recompute
2026-05-26 05:50 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-43989?

CVE-2021-43989 is a high vulnerability published on December 23, 2021. mySCADA myPRO Versions 8.20.0 and prior stores passwords using MD5, which may allow an attacker to crack the previously retrieved password hashes.

When was CVE-2021-43989 disclosed?

CVE-2021-43989 was first published in the National Vulnerability Database on December 23, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-43989 actively exploited?

CVE-2021-43989 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43989?

CVE-2021-43989 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-43989?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43989, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-43989

📅 Published

🔄 Last Modified

🔗 References (2)