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CVE Vulnerability Details :

CVE-2026-2738

PUBLISHED

More Info Official Page

Assigner-OpenVPN

Assigner Org ID-36a55730-e66d-4d39-8ca6-3c3b3017965e

Published At-19 Feb, 2026 | 20:00

Updated At-19 Feb, 2026 | 20:00

▼CVE Numbering Authority (CNA)

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

Affected Products

Vendor

OpenVPN

Product

ovpn-dco-win

Repo

https://github.com/OpenVPN/ovpn-dco-win/

Platforms

Windows

Default Status

unaffected

Versions

Affected

2.8.0

Problem Types

Type	CWE ID	Description
CWE	CWE-131	CWE-131 Incorrect Calculation of Buffer Size

Type: CWE

CWE ID: CWE-131

Description: CWE-131 Incorrect Calculation of Buffer Size

Metrics

Version	Base score	Base severity	Vector
4.0	5.6	MEDIUM	CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P

Version: 4.0

Base score: 5.6

Base severity: MEDIUM

Vector:

CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P

References

Hyperlink	Resource
https://community.openvpn.net/Security%20Announcements/CVE-2026-2738	vendor-advisory

Hyperlink: https://community.openvpn.net/Security%20Announcements/CVE-2026-2738

Resource:

vendor-advisory

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References