CVE-2020-3761Network attack vector

Unauthenticated arbitrary file read from installation directory

Published Mar 25, 2020 · Updated Aug 4, 2024

Remote file read in Adobe ColdFusion 2016 and 2018 allows remote attackers to read arbitrary files from its installation directory. Adobe has not disclosed the affected endpoint or how a remote request selects files within the installation directory. No authentication or user interaction is required, but servers installed with Adobe's recommended lockdown installer are not affected.

CVSS severity7.5
High
EPSS probability4.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote file read in Adobe ColdFusion 2016 and 2018 allows remote attackers to read arbitrary files from its installation directory. Adobe has not disclosed the affected endpoint or how a remote request selects files within the installation directory. No authentication or user interaction is required, but servers installed with Adobe's recommended lockdown installer are not affected.

The record

CVE
CVE-2020-3761
Published
Mar 25, 2020
Updated
Aug 4, 2024
Vendor
Adobe
Product
ColdFusion
Classifications
T1005, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=ColdFusion 2016, and ColdFusion 2018 versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Adobe · ColdFusionversion=ColdFusion 2016, and ColdFusion 2018 versions

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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