Incorrect Calculation Affecting io.netty:netty-tcnative package, versions [,2.0.84.Final)
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-JAVA-IONETTY-21755447
- published27 Oct 2026
- disclosed26 Oct 2026
- creditAugust829
Introduced: 26 Oct 2026
NewCVE-2026-116541 (opens in a new tab)How to fix?
Upgrade io.netty:netty-tcnative to version 2.0.84.Final or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Calculation via the tcn_write_to_bytebuffer callback in the BIO write process. An attacker can cause queued post-handshake records to truncate flights, fail connections, or abort the JVM process by sending specially crafted TLS 1.3 messages.