CVE Record
[ CRITICAL ]CVE-2018-4939
Adobe ColdFusion Deserialization of Untrusted Data Vulnerability
Adobe ColdFusion contains a deserialization of untrusted data vulnerability that could allow for code execution.
- Vendor
- Adobe
- Product
- ColdFusion
- CVSS
- 9.8
- EPSS (exploit probability)
- 62.0%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2018-4939 being exploited?
Yes. CISA added CVE-2018-4939 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 62.0% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-19. Full cross-catalog view: /kev-comparison
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (181 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Adobe ColdFusion CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-48325 Adobe ColdFusion missing authentication — CVSS 9.3write-up | [ CRITICAL ] | 9.3 | 0.6% | — |
| CVE-2026-48322 Adobe ColdFusion code injection — CVSS 9.6write-up | [ CRITICAL ] | 9.6 | 1.2% | — |
| CVE-2026-48321 Adobe ColdFusion authorization bypass — CVSS 9.3write-up | [ CRITICAL ] | 9.3 | 0.4% | — |
| CVE-2026-48319 Adobe ColdFusion path traversal — CVSS 9.1write-up | [ CRITICAL ] | 9.1 | 1.4% | — |
| CVE-2026-48284 Adobe ColdFusion input-validation failure — CVSS 9.6write-up | [ CRITICAL ] | 9.6 | 0.5% | — |
| CVE-2026-48318 Adobe ColdFusion path traversalwrite-up | [ CRITICAL ] | 9.9 | 1.1% | — |
| CVE-2026-48282 Adobe ColdFusion path-traversal to arbitrary code executionwrite-up | [ CRITICAL ] | 10.0 | 42.4% | |
| CVE-2017-3066 Adobe ColdFusion Deserialization Vulnerability | [ CRITICAL ] | 9.8 | 90.6% |