CVE-2020-27575Public exploitNetwork attack vector

Root command execution via unfiltered HomeFolder parameter

Published Mar 8, 2021 · Updated Jul 9, 2026

OS command injection in Maxum Rumpus 8.2.13 and 8.2.14 allows remote authenticated users to execute arbitrary commands as root. The web user account management edit form passes the unfiltered HomeFolder parameter into a command string, where quotes and backticks inject shell instructions. Administrative access to the enabled web user account management feature is required for direct exploitation; successful injection grants root-level control of the host.

CVSS severity8.8
High
EPSS probability3.08%
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 Maxum Rumpus 8.2.13 and 8.2.14 allows remote authenticated users to execute arbitrary commands as root. The web user account management edit form passes the unfiltered HomeFolder parameter into a command string, where quotes and backticks inject shell instructions. Administrative access to the enabled web user account management feature is required for direct exploitation; successful injection grants root-level control of the host.

The record

CVE
CVE-2020-27575
Published
Mar 8, 2021
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
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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