CVE-2020-10511Public exploitNetwork attack vector

Unauthenticated command execution via unchecked file parameter

Published Apr 15, 2020 · Updated Sep 16, 2024

OS command injection in affected HGiga C&Cm@il CCMAILQ and CCMAILN releases allows remote attackers to execute commands via a crafted URL. The unauthenticated /EIP/oll/admin/cfg_download.php endpoint passes its file parameter into an operating-system command without neutralizing command syntax. Any network client that can reach this administrator endpoint can execute arbitrary commands and upload a web shell, compromising the mail server.

CVSS severity9.8
Critical
EPSS probability2.23%
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 affected HGiga C&Cm@il CCMAILQ and CCMAILN releases allows remote attackers to execute commands via a crafted URL. The unauthenticated /EIP/oll/admin/cfg_download.php endpoint passes its file parameter into an operating-system command without neutralizing command syntax. Any network client that can reach this administrator endpoint can execute arbitrary commands and upload a web shell, compromising the mail server.

The record

CVE
CVE-2020-10511
Published
Apr 15, 2020
Updated
Sep 16, 2024
Vendor
HGiga
Product
C&Cm@il
Classifications
CWE-78, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=CCMAILN before olln-base-5.0-418.i386.rpm
  2. Affected versionversion=CCMAILQ before olln-base-6.0-418.i386.rpm

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HGiga · C&Cm@ilversion=CCMAILN before olln-base-5.0-418.i386.rpm; version=CCMAILQ before olln-base-6.0-418.i386.rpm

Published CVSS scores

9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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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