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CVE-2025-2704

Good to know:

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Date: April 2, 2025

OpenVPN version 2.6.1 through 2.6.13 in server mode using TLS-crypt-v2 allows remote attackers to trigger a denial of service by corrupting and replaying network packets in the early handshake phase

Severity Score

Related Resources (7)

https://community.openvpn.net/openvpn/wiki/CVE-2025-2704
https://security-tracker.debian.org/tracker/CVE-2025-2704
http://www.openwall.com/lists/oss-security/2025/04/02/5
https://nvd.nist.gov/vuln/detail/CVE-2025-2704
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00142.html
https://security.alpinelinux.org/vuln/CVE-2025-2704
https://www.mend.io/vulnerability-database/CVE-2025-2704

Severity Score

Weakness Type (CWE)

Improper Check for Unusual or Exceptional Conditions

CWE-754

Top Fix

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Upgrade Version

Upgrade to version https://github.com/OpenVPN/openvpn.git - v2.6.14

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): LOW

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