Servers and applications
CVE-2018-9336
openvpnserv.exe (aka the interactive service helper) in OpenVPN 2.4.x before 2.4.6 allows a local attacker to cause a double-free of memory by sending a malformed request to the interactive service. This could cause a denial-of-service through memory corruption or possibly have unspecified other impact including privilege escalation.
- Severity
- High 7.8
- Published
- 1 May 2018
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Fixed in
- 2.4.6
- Exploit chance
- 0.6% in the next 30 daysHigher than 48% of CVEs. EPSS by FIRST, 10 Nov 2026
- Weakness
- Double free (CWE-415)
- Attack
- Needs local access · Needs a user account · No user action needed
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
OpenVPNServers and applications · cpe:a:openvpn:openvpn |
|