CVE-2020-7385Public exploitNetwork attack vector

Code execution via exposed DRuby service

Published Apr 23, 2021 · Updated Sep 17, 2024

Deserialization in Metasploit Framework 6.0.15 allows remote attackers to execute code when a user runs drb_remote_codeexec. The module unnecessarily starts a DRuby service inside msfconsole, exposing Distributed Ruby's unsafe remote object handling to the endpoint. The attacker must operate that endpoint and entice the user to launch the module; resulting commands run with the Metasploit process's privileges.

CVSS severity8.1
High
EPSS probability1.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Metasploit Framework 6.0.15 allows remote attackers to execute code when a user runs drb_remote_codeexec. The module unnecessarily starts a DRuby service inside msfconsole, exposing Distributed Ruby's unsafe remote object handling to the endpoint. The attacker must operate that endpoint and entice the user to launch the module; resulting commands run with the Metasploit process's privileges.

The record

CVE
CVE-2020-7385
Published
Apr 23, 2021
Updated
Sep 17, 2024
Vendor
Rapid7
Product
Metasploit Framework
Classifications
CWE-502, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=6.0.15 <=6.0.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rapid7 · Metasploit Frameworkversion=6.0.15 <=6.0.15

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.1Rapid7, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution

Public exploit references

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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