UpHeron
All vulnerabilities

Servers and applications

CVE-2025-13086

Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client

Severity
Medium 4.6
Published
3 Dec 2025
Last changed
25 Sept 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.6.16
Sources
NVD

Affected software

SoftwareAffected versions
OpenVPNServers and applications · cpe:a:openvpn:openvpn
  • Version 2.7-rc1
  • Version 2.7-beta3
  • Version 2.7-beta2
  • Version 2.7-beta1
All 8 release lines
  • From 2.6.0 before 2.6.16
  • Version 2.7-alpha1
  • Version 2.7-alpha2
  • Version 2.7-alpha3
  • Version 2.7-beta1
  • Version 2.7-beta2
  • Version 2.7-beta3
  • Version 2.7-rc1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-13086
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-13086