CVE-2025-42921

MEDIUMNVD 4.24.2—Trending — 3 sources updated this week

4.2

In JetBrains Toolbox App before 2.6 host key verification was missing in SSH plugin

CVSS v3: 4.2
EG Score: 4.2(medium)
EPSS: 0.6%
KEV: Not listed

Published

April 17, 2025

Last Modified

April 23, 2025

References (1)

cve@jetbrainshttps://www.jetbrains.com/privacy-security/issues-fixed/

Weakness Classification(1)

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

CWE-297Improper Validation of Certificate with Host Mismatch

Data Freshness Timeline

(refreshed 7× in last 7d / 7× 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 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-30 07:11 UTCEG score recompute
2026-05-30 07:11 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2025-42921?

CVE-2025-42921 is a medium vulnerability published on April 17, 2025. In JetBrains Toolbox App before 2.6 host key verification was missing in SSH plugin

When was CVE-2025-42921 disclosed?

CVE-2025-42921 was first published in the National Vulnerability Database on April 17, 2025, with the most recent update on April 23, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-42921 actively exploited?

CVE-2025-42921 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-42921?

CVE-2025-42921 has a CVSS v3 base score of 4.2 (NVD).

How do I remediate CVE-2025-42921?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-42921, 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-2025-42921

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CVE-2025-42921

📅 Published

🔄 Last Modified

🔗 References (1)