Improper Input Validation Affecting h2o/quicly package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-H2OQUICLY-15038734
- published20 Jan 2026
- disclosed19 Jan 2026
- creditIsa Jafarov, Choongin Lee, Prof. Heejo Lee, Prof. Sven Dietrich
Introduced: 19 Jan 2026
CVE-2025-61684 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Improper Input Validation when assertion failures are triggered. An attacker can cause the application to crash by sending specially crafted network packets.