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
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
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Meta Information
Published
2026-02-19
Last Modified
2026-02-19
Generated
2026-06-16
AI Q&A
2026-02-19
EPSS Evaluated
2026-06-15
NVD
CVE-2026-2738
EUVD
EUVD-2026-8311
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openvpn ovpn-dco-win 2.8.0
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Exploitability
CWE
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KEV
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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.
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Executive Summary

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.

Impact Analysis

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.

Compliance Impact

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Detection Guidance

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