Security readout for executives and security teams
This flaw lets an unauthenticated attacker potentially run arbitrary code on vulnerable Adobe ColdFusion servers. Because CISA lists CVE-2018-4939 in the Known Exploited Vulnerabilities catalog, treat exposed ColdFusion systems as urgent until version and patch status are proven safe. Exposure is most likely where affected Adobe ColdFusion versions remain deployed, particularly on internet-facing systems or systems reachable from untrusted networks. The source bundle does not identify specific modules, endpoints, or configurations required beyond the affected product versions. Treat this as a near-term remediation priority. It is critical severity, remotely exploitable without authentication, and listed by CISA as known exploited. Any exposed affected ColdFusion server should be patched or isolated quickly and reviewed for compromise. Mitigation focus: Identify all Adobe ColdFusion deployments and their exact update levels.; Review Adobe APSB18-14 and apply the vendor-provided security update or guidance.; Prioritize internet-facing ColdFusion systems before internal-only systems..
Michael Williams reviewed this cited source version on .
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Open ATT&CK lookupExecution behavior lookup
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Open ATT&CK lookupCVE-2018-4939 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/coldfusion/apsb18-14.htmlCVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4939CVE reference · government-resource
Products and packages named in the record
CWE details
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Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.