CVE-2020-7628Public exploitNetwork attack vector

Arbitrary command execution via unsanitized device argument

Published Apr 2, 2020 · Updated Aug 4, 2024

Command injection in Juan Cruz Viotti umount 1.1.6 and earlier allows attackers to execute arbitrary commands via a crafted device value. The exported umount(device, callback) function in build/umount.js passes the raw device string directly to an exec call without validation. Reachability requires a consuming application to pass attacker-controlled input, and injected commands run with the Node.js process's privileges.

CVSS severity9.8
Critical
EPSS probability1.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Juan Cruz Viotti umount 1.1.6 and earlier allows attackers to execute arbitrary commands via a crafted device value. The exported umount(device, callback) function in build/umount.js passes the raw device string directly to an exec call without validation. Reachability requires a consuming application to pass attacker-controlled input, and injected commands run with the Node.js process's privileges.

The record

CVE
CVE-2020-7628
Published
Apr 2, 2020
Updated
Aug 4, 2024
Vendor
Juan Cruz Viotti
Product
umount
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 2, 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

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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=All versions including 1.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Juan Cruz Viotti · umountversion=All versions including 1.1.6

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

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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