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CVE-2018-4939: Adobe ColdFusion Deserialization of Untrusted Data Vulnerability

CVSS: 10.0v2.0HighKEVAnalyzed
Published 19-05-2018Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2018-4939 is a high (CVSS 10.0) Deserialization of Untrusted Data vulnerability in Adobe ColdFusion. It is known to be exploited: CISA lists it, first on 03-11-2021. EPSS estimates a 61.99% chance of exploitation in the next 30 days, higher than 99.1% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
61.99%
0%100%
Critical · -0.09 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-05-2018
    PublishedVulnerability first disclosed.
  2. 03-11-2021
    Added to CISA KEVAdobe ColdFusion Deserialization of Untrusted Data Vulnerability
  3. 03-05-2022
    CISA remediation dueApply updates per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

Description

Adobe ColdFusion Update 5 and earlier versions, ColdFusion 11 Update 13 and earlier versions have an exploitable Deserialization of Untrusted Data vulnerability. Successful exploitation could lead to arbitrary code execution.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

61.99%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

-0.09 pp

From 62.08% on 19-09-2026

19-09-202619-10-2026
EPSS score
61.99%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
03-11-2021
Federal due date
03-05-2022

CISA required action

Apply updates per vendor instructions. nvd.nist.gov/vuln/detail/CVE-2018-4939

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Adobe1 product
  • coldfusionEOL11.0 | 11.0:update1 | 11.0:update10 | 11.0:update11 | 11.0:update12 | 11.0:update13 | 11.0:update2 | 11.0:update3 | 11.0:update4 | 11.0:update5 | 11.0:update6 | 11.0:update7 | 11.0:update8 | 11.0:update9 | 2016 | 2016:update1 | 2016:update2 | 2016:update3 | 2016:update4 | 2016:update5

1 vendor · 1 product

References

3 links