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CVE-2025-2704

Published: Apr 2, 2025Updated: Oct 23, 2025 Sources: CVE List NVD BDUCWE-754
7.5HIGH
NVD MITRE
EPSS Score
0.8%
Top 48.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-754

Affected Products

OpenVPNOpenVPN
On-premSecurity Product
Networking Infrastructure
openvpnopenvpn
On-premSecurity Product
Networking Infrastructure
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
АЛЬТ СП 10АО «ИВК»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
openvpnoss-projectUSNetworking Infrastructureaka openvpn access server, connect
ооо «ред софт»commercialRUOperating Systemsaka red soft
ао «ивк»commercialRUOperating Systemsaka ivk
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 2 more affected products View all →

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

References

https://community.openvpn.net/openvpn/wiki/CVE-2025-2704
community.openvpn.net
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00142.html
mail-archive.com
http://www.openwall.com/lists/oss-security/2025/04/02/5
openwall.com
and 7 more references View all →

Timeline

Published
Apr 2, 2025
Last Updated
Oct 23, 2025

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