CVE-2020-7775Network attack vector

Arbitrary command execution via unneutralized shell argument

Published Feb 2, 2021 · Updated Sep 17, 2024

OS command injection in Freediskspace Project freediskspace 1.2.0 and earlier allows attackers to run commands via crafted arguments. Line 71 of freediskspace.js incorporates a caller-controlled argument into an operating-system command without neutralizing shell metacharacters. Exploitation requires a consuming application to pass attacker-controlled input to the library, and injected commands run with that application's privileges.

CVSS severity9.8
Critical
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Freediskspace Project freediskspace 1.2.0 and earlier allows attackers to run commands via crafted arguments. Line 71 of freediskspace.js incorporates a caller-controlled argument into an operating-system command without neutralizing shell metacharacters. Exploitation requires a consuming application to pass attacker-controlled input to the library, and injected commands run with that application's privileges.

The record

CVE
CVE-2020-7775
Published
Feb 2, 2021
Updated
Sep 17, 2024
Vendor
Freediskspace Project
Product
freediskspace
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 2, 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=0 <unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Freediskspace Project · freediskspaceversion=0 <unspecified

Published CVSS scores

9.8SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDAV: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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