High severity · published Jul 2, 2021
CVE-2021-3606
OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run…
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe).
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openvpn · Openvpn
before 2.5.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3606
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3606
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/CVE-2021-3606
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
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