GHSA-45xm-v8gq-7jqx · Severity: medium · Ecosystem: maven — Excessive memory allocation
In version from 3.0.0 to 3.5.3 of Eclipse Vert.x, the WebSocket HTTP upgrade implementation buffers the full http request before doing the handshake, holding the entire request body in memory. There should be a reasonnable limit (8192 bytes) above which the WebSocket gets an HTTP response with the 413 status code and the connection gets closed.
Conclusion & alert: CVE-2018-12541 is rated Moderate Risk (56.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.65%). Core evidence: EPSS rose +1.31% 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 | 2026-06-15 | 1.34% | 2.65% | +1.31% |
| 2 | 2025-04-21 | 1.06% | 1.34% | +0.28% |
| 3 | 2025-03-30 | — | 1.06% | — |
Full EPSS history (22 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
GHSA-45xm-v8gq-7jqx · Severity: medium · Ecosystem: maven — Excessive memory allocation
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-12541 |