CVE-2026-116541: netty-tcnative before 2.0.84.Final Denial of Service via BIO Write Overcount
netty · netty-tcnative
Fixed in 2.0.84.Final · Affected: netty-tcnative before 2.0.84.Final · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 42% of scored CVEs
DescriptionCVE.org
Netty netty-tcnative before 2.0.84.Final contains a denial of service vulnerability in the tcn_write_to_bytebuffer BIO write callback that overreports bytes consumed. Remote TLS 1.3 peers can provoke queued post-handshake records like NewSessionTicket or KeyUpdate to truncate flights, fail connections, or abort the JVM process.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- netty · netty-tcnativebefore 2.0.84.Final
- netty · netty-tcnative-boringssl-staticbefore 2.0.84.Final
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- netty
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-116541 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.