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OpenAdvisories
High · 7.5 CVE-2026-111855 EUVD-2026-103208GHSA-grh2-338g-6c79

An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal vulnerability exists in the web management interf…

Published Oct 17, 2026 · Updated Oct 21, 2026 · Assigned by mitre

Description

An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1. A path traversal vulnerability exists in the web management interface of the device. Insufficient validation of user-supplied file paths allows remote attackers to read arbitrary files accessible to the application. Depending on configuration, exploitation may be possible without authentication.

Affected products

VendorProductAffectedFixed
Tektronix 3 Series MDO < 1.21.1 1.21.1

References