In ZNC before 1.9.1, remote code execution can occur in modtcl via a KICK.
Priority MEDIUM 55CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-94.
Summary
In ZNC before 1.9.1, remote code execution can occur in modtcl via a KICK.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03862 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-39844
- 2026-10-03 Alias added: GHSA-qh94-pjxq-88v7
- 2026-10-14 EPSS moved to the 90th–95th percentile
References
Sources
- CVE-2024-39844 · CVE Program
- CVE-2024-39844 · NVD
- FIRST EPSS
- GHSA-qh94-pjxq-88v7 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-39844 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences