GHSA-mm9x-g8pc-w292 · Severity: high · Ecosystem: maven — Denial of Service in Netty
The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.
Conclusion & alert: CVE-2020-11612 is rated Moderate Risk (63.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.33%). Core evidence: EPSS rose +2.28% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-04 | 2.05% | 4.33% | +2.28% |
| 2 | 2026-03-01 | 4.33% | 2.05% | -2.28% |
| 3 | 2026-02-04 | — | 4.33% | — |
Full EPSS history (29 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-mm9x-g8pc-w292 · Severity: high · Ecosystem: maven — Denial of Service in Netty
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-11612 not yet assigned priority: Debian including 1 source packages (netty), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-11612 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-11612 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2020-11612/ |
ubuntu
|
medium | CVE-2020-11612 medium priority: Ubuntu including 1 source packages (netty), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 11, released 4, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2020-11612 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| netty | netty | >= 4.1, < 4.1.46 | cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| netapp | oncommand_api_services | — | cpe:2.3:a:netapp:oncommand_api_services:-:*:*:*:*:*:*:* |
| netapp | oncommand_insight | — | cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* |
| netapp | oncommand_workflow_automation | — | cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* |
| oracle | communications_brm_-_elastic_charging_engine | 12.0.0.3 | cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.3:*:*:*:*:*:*:* |
| oracle | communications_cloud_native_core_service_communication_proxy | 1.5.2 | cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.5.2:*:*:*:*:*:*:* |
| oracle | communications_design_studio | 7.4.2 | cpe:2.3:a:oracle:communications_design_studio:7.4.2:*:*:*:*:*:*:* |
| oracle | nosql_database | < 20.3 | cpe:2.3:a:oracle:nosql_database:*:*:*:*:*:*:*:* |
| oracle | siebel_core_-_server_framework | < 21.5 | cpe:2.3:a:oracle:siebel_core_-_server_framework:*:*:*:*:*:*:*:* |
| oracle | webcenter_portal | 12.2.1.3.0 | cpe:2.3:a:oracle:webcenter_portal:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | webcenter_portal | 12.2.1.4.0 | cpe:2.3:a:oracle:webcenter_portal:12.2.1.4.0:*:*:*:*:*:*:* |
| oracle | communications_messaging_server | 8.1 | cpe:2.3:o:oracle:communications_messaging_server:8.1:*:*:*:*:*:*:* |