CVE-2021-22640

HIGHNVD 7.59.8▲

7.5

An attacker can decrypt the Ovarro TBox login password by communication capture and brute force attacks.

CVSS v3: 7.5
EG Score: 9.8(medium)
EPSS: 47.1%
KEV: Not listed

Published

July 28, 2022

Last Modified

April 17, 2025

References (2)

ics-cert@hqhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04
af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/uscert/ics/advisories/icsa-21-054-04

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 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
2026-05-25 18:06 UTCEG score recompute
2026-05-25 18:06 UTCGHSA enrichment
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-22640?

CVE-2021-22640 is a high vulnerability published on July 28, 2022. An attacker can decrypt the Ovarro TBox login password by communication capture and brute force attacks.

When was CVE-2021-22640 disclosed?

CVE-2021-22640 was first published in the National Vulnerability Database on July 28, 2022, with the most recent update on April 17, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-22640 actively exploited?

CVE-2021-22640 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-22640?

CVE-2021-22640 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

How do I remediate CVE-2021-22640?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22640, 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-2021-22640

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CVE-2021-22640

📅 Published

🔄 Last Modified

🔗 References (2)