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Known exploited vulnerability · CISA KEV

CVE-2018-14667: Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability

Red Hat JBoss RichFaces Framework contains an expression language injection vulnerability via the UserResource resource. A remote, unauthenticated attacker could exploit this vulnerability to execute malicious code using a chain of Java serialized objects via org.ajax4jsf.resource.UserResource$UriData.

CVE-2018-14667

Exploited in the wild. Fix this first.

CISA added it to the Known Exploited Vulnerabilities catalog on 2023-09-28: attackers are using it right now.

CISA KEV
Listed
Added 2023-09-28 · federal fix-by 2023-10-19
EPSS (30 days)
74%
Higher than 99.5% of CVEs · 2026-11-01
CVSS
No score

What CISA says

Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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How to check if you are exposed to CVE-2018-14667

  1. Find every Red Hat JBoss RichFaces Framework system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
  2. Compare each version with the fixed versions in the vendor advisory below. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
  3. Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2018-14667.

US federal agencies had to fix this by 2023-10-19. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.

Timeline

  1. · Added to CISA's Known Exploited Vulnerabilities catalog
  2. · Fix-by date for US federal agencies, passed 1,109 days ago

Vendor advisories and fixes

Weakness type

More exploited Red Hat vulnerabilities

CISA lists 9 exploited Red Hat vulnerabilities. The closest matches:

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Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.

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