Medium severity · published Sep 23, 2021
CVE-2021-3824
OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL
6.1
CVSS
0.7%
EPSS
No
On KEV
Description
OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OA
Openvpn Access Server · Openvpn
2.9.0 through 2.9.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3824
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3824
Release Notes
https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-9-5
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