CVE-2026-10726 PUBLISHED

Cato Windows SDP Client arbitrary file disclosure due to improper TLS certificate validation

Assigner: Cato
Reserved: 03.06.2026 Published: 30.09.2026 Updated: 30.09.2026

Cato Windows SDP Client before version 6.12.6 contains an arbitrary file disclosure vulnerability. A low-privileged local user can cause the Windows service, running as Local System, to read and disclose arbitrary local files due to improper file path validation and missing TLS certificate enforcement.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
CVSS Score: 6.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Cato Networks
Product	SDP Client
Versions	Default: unaffected affected from 0 to 6.12.6 (excl.)

References

https://knowledge.catonetworks.com/docs/cve-2026-10726-cve-2026-10739-impacts-windows-client-versions-lower-than-6126

Problem Types

CWE-295 Improper certificate validation CWE
CWE-73 External control of file name or path CWE

Impacts

CAPEC-126 Path Traversal