CVE Explorer

CVE-2026-42577

Netty is an asynchronous, event-driven network application framework. From 4.2.0.Final to 4.2.13.Final , Netty's epoll transport fails to detect and close TCP connections that receive a RST after being half-closed, leading to stale channels that are never cleaned up and, in some code paths, a 100% CPU busy-loop in the event loop thread. This vulnerability is fixed in 4.2.13.Final.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a7f720a4b00861c83c289756450058bb6be5d07130bfed072e0a5a22eb0c3f93

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"netty","vendor":"netty","versions":[{"status":"affected","version":">= 4.2.0.Final, < 4.2.13.Final"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:8e8ac6227b22226a6d9eff81396ac928916a7e3a1109f72e394487fb9c3689fb · sha256:85d72d4d2c8fd74e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:8e8ac6227b22226a6d9eff81396ac928916a7e3a1109f72e394487fb9c3689fb · sha256:85d72d4d2c8fd74e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-772","description":"CWE-772: Missing Release of Resource after Effective Lifetime","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:8e8ac6227b22226a6d9eff81396ac928916a7e3a1109f72e394487fb9c3689fb · sha256:85d72d4d2c8fd74e… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/netty/netty/commit/0ec3d97fab376e243d328ac95fbd288ba0f6e22d","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/commit/0ec3d97fab376e243d328ac95fbd288ba0f6e22d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8e8ac6227b22226a6d9eff81396ac928916a7e3a1109f72e394487fb9c3689fb · sha256:85d72d4d2c8fd74e… · /containers/cna/references/2

{"name":"https://github.com/netty/netty/pull/16689","tags":["x_refsource_MISC"],"url":"https://github.com/netty/netty/pull/16689"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8e8ac6227b22226a6d9eff81396ac928916a7e3a1109f72e394487fb9c3689fb · sha256:85d72d4d2c8fd74e… · /containers/cna/references/1

{"name":"https://github.com/netty/netty/security/advisories/GHSA-rwm7-x88c-3g2p","tags":["x_refsource_CONFIRM"],"url":"https://github.com/netty/netty/security/advisories/GHSA-rwm7-x88c-3g2p"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8e8ac6227b22226a6d9eff81396ac928916a7e3a1109f72e394487fb9c3689fb · sha256:85d72d4d2c8fd74e… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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