Buffer overflow in Openvpn Ovpn-Dco-Win
CVE-2025-50054
Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (13.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Openvpn Ovpn-Dco-Win — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- community.openvpn.net/Security Announcements/CVE-2025-50054 (Vendor Advisory)
- community.openvpn.net/Downloads (Release Notes)
Frequently asked questions
- What is CVE-2025-50054?
- CVE-2025-50054 is a medium-severity vulnerability in Openvpn Ovpn-Dco-Win, classified under Heap-based Buffer Overflow. CVSS score: 5.5/10. Published 2025-06-20.
- How severe is CVE-2025-50054?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2025-50054 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.