CVE-2026-111855CWE-22path-traversal

CVE-2026-111855

High · published October 17, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
41.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00492 · 41.4th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-17T06:17Z
References (2)
https://download.tek.com/document/TEK-PSA-002-092026.pdf · [email protected]https://www.tek.com/en/products/oscilloscopes/3-series-mdo · [email protected]
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 17 OCT 02:09Z
    An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1
    cvelistv5
  • 17 OCT 02:09Z
    An issue was discovered on Tektronix 3 Series MDO devices before 1.21.1
    cvelistv5