GHSA-px7w-c9gw-7gj3 · Severity: critical · Ecosystem: maven — Apache James server: Privilege escalation via JMX pre-authentication deserialization
Apache James prior to version 3.7.5 and 3.8.0 exposes a JMX endpoint on localhost subject to pre-authentication deserialisation of untrusted data. Given a deserialisation gadjet, this could be leveraged as part of an exploit chain that could result in privilege escalation. Note that by default JMX endpoint is only bound locally. We recommend users to: - Upgrade to a non-vulnerable Apache James version - Run Apache James isolated from other processes (docker - dedicated virtual machine) - If possible turn off JMX
Conclusion & alert: CVE-2023-51518 is rated Moderate Risk (62.3/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.19%). 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 | 0.45% | 1.19% | +0.74% |
| 2 | 2025-11-21 | 0.83% | 0.45% | -0.38% |
| 3 | 2025-11-18 | — | 0.83% | — |
Full EPSS history (13 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 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-px7w-c9gw-7gj3 · Severity: critical · Ecosystem: maven — Apache James server: Privilege escalation via JMX pre-authentication deserialization
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/wbdm61ch6l0kzjn6nnfmyqlng82qz0or | Mailing List Vendor Advisory |