CVE-2026-42579Proof of concept (PoC) published · CISASuited to automated attack · CISA
Netty: DNS Codec Input Validation Bypass in Netty (Encoder + Decoder)
CVSS score
7.5
EPSS probability
%0.8
Risk score
0.1
Published
5 mo ago
Vulnerability Timeline (Change History)
CVE-2026-42579 historical changes made to the vulnerability by NVD, CISA and MITRE:
| Date | Actor / Source | Action / Description | Type | Previous value | New value |
|---|---|---|---|---|---|
| 18.09.2026 | nvd@nist.gov | Initial Analysis & CVSS Vector Assignment | CVSS V3.1 | — | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 13.05.2026 | CISA Coordinator | SSVC Risk Re-assessment | SSVC / KEV | exploitation: none | exploitation: none |
| 13.05.2026 | MITRE / NVD | New CVE Record Received & Ingested | CVE Created | — | CVE-2026-42579 |
Similar Vulnerabilities
9.1
CVE-2019-20445
Vulnerability in N/a
N
Patch verifiedEPSS %13
5.9
CVE-2021-21295
Possible request smuggling in HTTP/2 due missing validation
N
Patch verifiedEPSS %19
9.1
CVE-2019-20444
Vulnerability in N/a
N
Patch verifiedEPSS %9
7.5
CVE-2019-16869
Vulnerability in N/a
N
Patch verifiedEPSS %8
7.5
CVE-2021-37137
Uncontrolled resource consumption in The Netty Project
TN
Patch verifiedEPSS %7
7.5
CVE-2021-37136
Uncontrolled resource consumption in The Netty Project
TN
Patch verifiedEPSS %6
Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-42579"