SecuriTricks - CVE-2025-59692

Description

PureVPN client applications on Linux through September 2025 mishandle firewalling. They flush the system's existing iptables rules and apply default ACCEPT policies when connecting to a VPN server. This removes firewall rules that may have been configured manually or by other software (e.g., UFW, container engines, or system security policies). Upon VPN disconnect, the original firewall state is not restored. As a result, the system may become unintentionally exposed to network traffic that was previously blocked. This affects CLI 2.0.1 and GUI 2.10.0.

Product(s) Impacted

Vendor	Product	Versions
Purevpn	Purevpn Cli Purevpn Gui	2.0.1 2.10.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-669

Incorrect Resource Transfer Between Spheres

The product does not properly transfer a resource/behavior to another sphere, or improperly imports a resource/behavior from another sphere, in a manner that provides unintended control over that resource.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	purevpn	purevpn_cli	2.0.1	/	/	/	/	/	/	/
a	purevpn	purevpn_gui	2.10.0	/	/	/	/	/	/	/

References

https://anagogistis.com/posts/purevpn-ipv6-leak/

CVSS Score

3.7 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: LOW
Availability Impact: NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

View Vector String

Timeline

Published: Sept. 18, 2025, 11:15 p.m.
Last Modified: Sept. 19, 2025, 4 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

cve@mitre.org

CVE-2025-59692