CVE-2021-27505

HIGHNVD 7.57.5—

7.5

mySCADA myPRO versions prior to 8.20.0 does not restrict unauthorized read access to sensitive directory listing information.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 43.7%
KEV: Not listed

Published

May 13, 2022

Last Modified

November 21, 2024

References (4)

ics-cert@hqhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-217-03
ics-cert@hqhttps://www.myscada.org/version-8-20-0-released-security-update
af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/uscert/ics/advisories/icsa-21-217-03
af854a3a-2127-422b-91ae-364da2661108https://www.myscada.org/version-8-20-0-released-security-update

Weakness Classification(1)

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

CWE-548

Data Freshness Timeline

(refreshed 11× 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
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 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 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 22:07 UTCEG score recompute
2026-05-25 22:07 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-27505?

CVE-2021-27505 is a high vulnerability published on May 13, 2022. mySCADA myPRO versions prior to 8.20.0 does not restrict unauthorized read access to sensitive directory listing information.

When was CVE-2021-27505 disclosed?

CVE-2021-27505 was first published in the National Vulnerability Database on May 13, 2022, 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-2021-27505 actively exploited?

CVE-2021-27505 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 43.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27505?

CVE-2021-27505 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-27505?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27505, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-27505

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CVE-2021-27505

📅 Published

🔄 Last Modified

🔗 References (4)