CVE-2024-39844 - Vulnerability Details - OpenCVE

Description

In ZNC before 1.9.1, remote code execution can occur in modtcl via a KICK.

Published: 2024-07-03

Score: 9.8 Critical

EPSS: 37.1% Moderate

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

No data.

No data.

Vendor	Product	Confidence	Versions
Znc	Znc	—	—

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
Debian DSA	DSA-5725-1	znc security update
Ubuntu USN	USN-6990-1	znc vulnerability

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.37139.

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
http://www.openwall.com/lists/oss-security/2024/07/03/9
https://github.com/znc/znc/releases/tag/znc-1.9.1
https://wiki.znc.in/Category:ChangeLog
https://wiki.znc.in/ChangeLog/1.9.1
https://www.openwall.com/lists/oss-security/2024/07/03/9

History

Thu, 26 Feb 2026 12:15:00 +0000

Type	Values Removed	Values Added
CPEs		cpe:2.3:a:znc:znc::::::::
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 16 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.40478}`	epss `{'score': 0.36185}`

Subscriptions

Znc Znc

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2024-07-03T00:00:00.000Z

Updated: 2024-08-02T04:26:16.015Z

Reserved: 2024-06-29T00:00:00.000Z

Link: CVE-2024-39844

Vulnrichment

Updated: 2024-08-02T04:26:16.015Z

NVD

Status : Deferred

Published: 2024-07-03T17:15:04.403

Modified: 2026-04-15T00:35:42.020

Link: CVE-2024-39844

Redhat

No data.

OpenCVE Enrichment

Updated: 2025-07-13T11:22:57Z

Weaknesses

CWE-94

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