CVE-2023-51518

criticalpriority · track · 10EPSS 0.012 · 68 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.19% (68th) EPSS

CVSS 9.8 · critical

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-26

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

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502US

exploits (1)

Public proof-of-concept and weaponised exploit code.

mbadanoiu/CVE-2023-51518CVE-2023-51518: Preauthenticated Java Deserialization via JMX in Apache JamesPoC · poc_in_github

affected products (7)

Products and version ranges known to be affected.

Apache Software Foundation Apache James server≤ 0 ≤3.7.4enisa_euvdEU
Apache Software Foundation Apache James serverall versionsenisa_euvdEU
Apache Software Foundation Apache James server≤ 3.8 ≤3.8.0enisa_euvdEU
apache james= 3.7.5nvdUScpe:2.3:a:apache:james:*:*:*:*:*:*:*:*
apache james= 3.8.0nvdUScpe:2.3:a:apache:james:*:*:*:*:*:*:*:*
Maven org.apache.james:james-server< 3.7.5osvUSpkg:maven/org.apache.james/james-server
Maven org.apache.james:james-server3.8.0 → 3.8.1osvUSpkg:maven/org.apache.james/james-server

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-px7w-c9gw-7gj3Apache James server: Privilege escalation via JMX pre-authentication deserialization2024-02-27ghsa · osvUS
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

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2024-02-27modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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