CVE-2026-2738
Received
Received - Intake
Buffer Overflow in ovpn-dco-win 2.8.0 Causes System Crash
Publication date: 2026-02-19
Last updated on: 2026-02-19
Assigner: OpenVPN Inc.
Description
Description
Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too large packets to the remote peer when the AEAD tag appears at the end of the encrypted packet
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| openvpn | ovpn-dco-win | 2.8.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-131 | The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a buffer overflow in the ovpn-dco-win version 2.8.0. It occurs when local attackers send packets that are too large to the remote peer, specifically when the AEAD tag appears at the end of the encrypted packet. This causes the system to crash.
How can this vulnerability impact me? :
The impact of this vulnerability is that a local attacker can cause a system crash by exploiting the buffer overflow. This can lead to denial of service conditions on the affected system.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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