How severe is CVE-2018-18809?

CVE-2018-18809 has a CVSS score of 6.5/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which products are affected by CVE-2018-18809?

Affected package information for CVE-2018-18809 is not yet fully mapped. Check the official advisory links for details.

How do I patch CVE-2018-18809?

No patch has shipped for CVE-2018-18809 yet — track the tibco jasperreports library advisory for a fixed release and apply the workarounds below in the meantime.

How do I detect CVE-2018-18809 across my infrastructure?

Inventory every tibco jasperreports library deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

How do I mitigate CVE-2018-18809 if there is no patch (or I can't update yet)?

Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

How does O3 Security protect against CVE-2018-18809?

O3 detects and blocks CVE-2018-18809 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Is CVE-2018-18809 actively exploited in the wild?

Yes. There are 3 known exploit references for CVE-2018-18809, including 3 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2018-18809?

CVE-2018-18809 has an EPSS (Exploit Prediction Scoring System) score of 79.1%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2018-18809 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2018-18809 (TIBCO JasperReports Library Directory Traversal Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-12-29. CISA required all US federal civilian agencies to remediate this vulnerability by 2023-01-19. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2018-18809?

CVE-2018-18809 is classified as Path Traversal (CWE-22). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2018-18809?

CVE-2018-18809 affects tibco jasperreports library (2 versions, e.g. 7.1.0, 7.2.0); tibco jasperreports server (1 version, e.g. 7.1.0); tibco jaspersoft; tibco jaspersoft reporting and analytics. Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2018-18809?

A Nuclei detection template exists for CVE-2018-18809, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2018-18809 published, and has it been updated?

CVE-2018-18809 was published on March 7, 2019 and was last updated on June 17, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-12-29 — agencies required to remediate by 2023-01-19

CVE-2018-18809

MEDIUM

The default server implementation of TIBCO Software Inc.'s TIBCO JasperReports Library, TIBCO JasperReports Library Community Edition, TIBCO JasperReports Library for ActiveMatrix BPM,…

Published

Mar 7, 2019

Updated

Jun 17, 2026

Affected

0 pkgs

Patched

None yet

Exploits

3 known

EPSS Exploitation Probability

via FIRST.org ↗

79.1%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

The default server implementation of TIBCO Software Inc.'s TIBCO JasperReports Library, TIBCO JasperReports Library Community Edition, TIBCO JasperReports Library for ActiveMatrix BPM, TIBCO JasperReports Server, TIBCO JasperReports Server Community Edition, TIBCO JasperReports Server for ActiveMatrix BPM, TIBCO Jaspersoft for AWS with Multi-Tenancy, and TIBCO Jaspersoft Reporting and Analytics for AWS contains a directory-traversal vulnerability that may theoretically allow web server users to access contents of the host system. Affected releases are TIBCO Software Inc.'s TIBCO JasperReports Library: versions up to and including 6.3.4; 6.4.1; 6.4.2; 6.4.21; 7.1.0; 7.2.0, TIBCO JasperReports Library Community Edition: versions up to and including 6.7.0, TIBCO JasperReports Library for ActiveMatrix BPM: versions up to and including 6.4.21, TIBCO JasperReports Server: versions up to and including 6.3.4; 6.4.0; 6.4.1; 6.4.2; 6.4.3; 7.1.0, TIBCO JasperReports Server Community Edition: versions up to and including 6.4.3; 7.1.0, TIBCO JasperReports Server for ActiveMatrix BPM: versions up to and including 6.4.3, TIBCO Jaspersoft for AWS with Multi-Tenancy: versions up to and including 7.1.0, TIBCO Jaspersoft Reporting and Analytics for AWS: versions up to and including 7.1.0.

Affected Products

4 products · 9 configurations

Application

jasperreports librarytibco

≤ 6.7.0

2 versions

7.1.07.2.0

Application

jasperreports servertibco

≤ 6.4.3

1 version

7.1.0

Application

jaspersofttibco

≤ 7.1.0

range

Application

jaspersoft reporting and analyticstibco

≤ 7.1.0

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

The default server implementation of TIBCO Software Inc.'s TIBCO JasperR…

cisa.govCISADec 2022

The default server implementation of TIBCO Software Inc.'s TIBCO JasperR…

security.elarlang.euNVDMar 2023

The default server implementation of TIBCO Software Inc.'s TIBCO JasperR…

cybersecurityworks.comNVDMar 2023

Detection & mitigation playbook

Vendor / appliance

Detect
Inventory every tibco jasperreports library deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Remediation status
No patch has shipped for CVE-2018-18809 yet — track the tibco jasperreports library advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2018-18809 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2018-18809. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

O3 Security · Runtime Protection

Is CVE-2018-18809 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2018-18809 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.

Protect my workloads How runtime protection works

CVSS Score

6.5/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

Low

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

None

A:Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE Classification

Weaponization

Timeline

Disclosed

Mar 7, 2019

KEV added

Dec 29, 2022

First exploit

Dec 29, 2022

Last updated

Jun 17, 2026

Identifiers

CVE-2018-18809

References

Advisorypacketstormsecurity.com Advisoryseclists.org Advisorysecurityfocus.com Advisorytibco.com Advisorytibco.com Advisorypacketstormsecurity.com Advisoryseclists.org Advisorysecurityfocus.com Advisorytibco.com Advisorytibco.com Exploit / PoCcybersecurityworks.com Exploit / PoCsecurity.elarlang.eu Exploit / PoCcybersecurityworks.com Exploit / PoCsecurity.elarlang.eu Webcisa.gov

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.

CVE-2018-18809

EPSS Exploitation Probability

Description

Affected Products

Detection & mitigation playbook

Detect

Remediation status

Mitigate without a patch

How O3 protects you

Frequently Asked Questions

Is CVE-2018-18809 being exploited in your environment?