CVE-2026-75925

CRITICAL 9.6

IXON VPN Client CRLF Injection

CVSS Score

9.6

EPSS Score

0.0%

EPSS Percentile

0th

Improper neutralization of CRLF sequences in IXON VPN Client before version 1.4.7 allows an attacker to execute commands as root or SYSTEM. Configuration values accepted by the local service are written to a file later consumed by a privileged subprocess, without line-ending sequences being neutralized, which allows additional directives to be introduced into that file. The configuration interface accepts changes without authenticating or verifying the origin of the requester. The injected configuration persists on disk across restarts of the client and the operating system, and the VPN connection continues to function normally, so there is no behavioral change visible to the user.

CWE	CWE-93
Vendor	ixon
Product	ixon vpn client
Published	Sep 4, 2026
Last Updated	Sep 7, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

IXON / IXON VPN Client

0 < 1.4.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

ixon.cloud: https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-246-02 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-246-02.json

Credits

Luuk van Rheden of IXON discovered this vulnerability. 🔍 Stan van Duijnhoven of IXON reported this vulnerability to CISA.