CVE-2019-12409

Exp

The 8.1.1 and 8.2.0 releases of Apache Solr contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default solr.in.sh configuration file shipping with Solr. If you use the default solr.in.sh file from the affected releases, then JMX monitoring will be enabled and exposed on RMI_PORT (default=18983), without any authentication. If this port is opened for inbound traffic in your firewall, then anyone with network access to your Solr nodes will be able to access JMX, which may in turn allow them to upload malicious code for execution on the Solr server.

Published: 2019-11-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2019-12409 is rated High Exploit Risk (88.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 82.77%, 99th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-12409

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-12409

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 2026-03-26 82.99% 82.77% -0.22%
2 2026-03-21 82.77% 82.99% +0.22%
3 2025-11-21 82.77%

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-12409

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2019-12409

GitHub Security Advisory for CVE-2019-12409

GHSA-2289-pqfq-6wx7 · Severity: critical · Ecosystem: maven — Unrestricted upload of file with dangerous type in Apache Solr

OS Trackers for CVE-2019-12409

vendor priority summary link
debian unimportant CVE-2019-12409 unimportant priority: Debian including 1 source packages (lucene-solr), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-12409
redhat high https://access.redhat.com/security/cve/CVE-2019-12409
ubuntu medium CVE-2019-12409 medium priority: Ubuntu including 1 source packages (lucene-solr), 6 status rows across 6 suites (bionic, disco, eoan, trusty, upstream, xenial): not-affected 5, needs-triage 1. https://ubuntu.com/security/CVE-2019-12409

Affected software / configurations for CVE-2019-12409

Vendor Product Version Raw CPE
apache solr 8.1.1 cpe:2.3:a:apache:solr:8.1.1:*:*:*:*:*:*:*
apache solr 8.2.0 cpe:2.3:a:apache:solr:8.2.0:*:*:*:*:*:*:*

References for CVE-2019-12409

URL Tags
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12409-RCE%20Vulnerability%20Due%20to%20Bad%20Defalut%20Config-Apache%20Solr Exploit Third Party Advisory
https://lists.apache.org/thread.html/47e112035b4aa67ece3b75dbcd1b9c9212895b9dfe2a71f6f7c174e2%40%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/6640c7e370fce2b74e466a605a46244ccc40666ad9e3064a4e04a85d%40%3Csolr-user.lucene.apache.org%3E
https://lists.apache.org/thread.html/925cdb49ceae78baddb45da7beb9b4d2b1ddc4a8e318c65e91fb4e87%40%3Cissues.lucene.apache.org%3E
https://lists.apache.org/thread.html/a044eae4f6f5b0160ece5bf9cc4c0dad90ce7dd9bb210a9dc50b54be%40%3Cgeneral.lucene.apache.org%3E
https://lists.apache.org/thread.html/ce7c0b456b15f6c7518adefa54ec948fed6de8e951a2584500c1e541%40%3Cissues.lucene.apache.org%3E
https://support.f5.com/csp/article/K23720587?utm_source=f5support&amp%3Butm_medium=RSS
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