CVE-2023-1000Network attack vector

Remote command execution via unquoted notification fields

Published Apr 27, 2024 · Updated Aug 2, 2024

Command injection in cyanomiko dcnnt-py 0.9.0 and earlier allows remote authenticated users to execute arbitrary shell commands. The Notification Handler's main function inserts network-supplied notification fields into a configurable command and passes the result to subprocess.call with shell=True without shell quoting. A user able to send a notification can run commands with the privileges of the dcnnt process while the notification is displayed.

CVSS severity6.3
Medium
EPSS probability1.32%
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 cyanomiko dcnnt-py 0.9.0 and earlier allows remote authenticated users to execute arbitrary shell commands. The Notification Handler's main function inserts network-supplied notification fields into a configurable command and passes the result to subprocess.call with shell=True without shell quoting. A user able to send a notification can run commands with the privileges of the dcnnt process while the notification is displayed.

The record

CVE
CVE-2023-1000
Published
Apr 27, 2024
Updated
Aug 2, 2024
Vendor
cyanomiko
Product
dcnnt
Classifications
CWE-77, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0.1
  2. Affected versionversion=0.2
  3. Affected versionversion=0.3
  4. Affected versionversion=0.4
  5. Affected versionversion=0.5
  6. Affected versionversion=0.6
  7. Affected versionversion=0.7
  8. Affected versionversion=0.8
  9. Affected versionversion=0.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

cyanomiko · dcnntversion=0.1; version=0.2; version=0.3; version=0.4; version=0.5; version=0.6; version=0.7; version=0.8; version=0.9

Published CVSS scores

6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

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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