GHSA-xc93-587g-mxm7 · Severity: critical · Ecosystem: maven — Payara Server allows remote attackers to load malicious code on the server once a JNDI directory scan is performed
A JNDI rebind operation in the default ORB listener in Payara Server 4.1.2.191 (Enterprise), 5.20.0 and newer (Enterprise), and 5.2020.1 and newer (Community), when Java 1.8u181 and earlier is used, allows remote attackers to load malicious code on the server once a JNDI directory scan is performed.
Conclusion & alert: CVE-2023-28462 is rated Moderate Risk (57.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.93%). 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 | 1.82% | 0.93% | -0.89% |
| 2 | 2026-05-13 | 2.19% | 1.82% | -0.38% |
| 3 | 2026-04-04 | — | 2.19% | — |
Full EPSS history (23 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-xc93-587g-mxm7 · Severity: critical · Ecosystem: maven — Payara Server allows remote attackers to load malicious code on the server once a JNDI directory scan is performed
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| payara | payara_server | >= 4.1.2.191, <= 5.0.0 | cpe:2.3:a:payara:payara_server:*:*:*:*:enterprise:*:*:* |
| payara | payara_server | >= 5.20.0 | cpe:2.3:a:payara:payara_server:*:*:*:*:enterprise:*:*:* |
| payara | payara_server | >= 5.2020.1 | cpe:2.3:a:payara:payara_server:*:*:*:*:community:*:*:* |
| URL | Tags |
|---|---|
| https://blog.payara.fish/vulnerability-affecting-server-environments-on-java-1.8-on-updates-lower-than-1.8u191 | Mitigation Vendor Advisory |