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TI-2024-04824 Aliases CVE-2024-5198GHSA-cp7w-whjm-pp36

NULL pointer dereference in OpenVPN ovpn-dco

Priority LOW 15CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a system halt.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0014 3rd 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
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenVPNovpn-dco1.1.1—No fix listedCNA
OpenVPNOpenVPN-GUI2.6.10-I002—No fix listedCNA
  • ovpn-dco VendorOpenVPN Affected 1.1.1 Fixed in — No fix listed CNA
  • OpenVPN-GUI VendorOpenVPN Affected 2.6.10-I002 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openvpn:ovpn-dco-win:1.1.1:*:*:*:*:*:*:*1.1.1VulnerableOpenVPN
  • cpe:2.3:a:openvpn:ovpn-dco-win:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·OpenVPN

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-5198
  2. 2026-10-03 Alias added: GHSA-cp7w-whjm-pp36

References

Advisory 1

  • TI-2026-10019 Heap-based buffer overflow in OpenVPN ovpn-dco-win CVSS 4.0MEDIUM 5.6
  • TI-2025-31967 Heap-based buffer overflow in OpenVPN ovpn-dco-win CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences