CVE-2025-41753 PUBLISHED

Path traversal in dynamically created BACnet File Objects

Assigner: CERTVDE
Reserved: 16.04.2025 Published: 01.10.2026 Updated: 01.10.2026

The object name of a dynamically created BACnet File Object is interpreted as a file path without sufficient validation. Because relative paths are not limited to the intended directory, an unauthenticated remote attacker can traverse outside of it and read or overwrite arbitrary files on the device, which may lead to full system compromise.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

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

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	WAGO
Product	0751-9x01
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0750-811x-xxxx-xxxx
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0750-821x-xxx-xxx
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-420x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-430x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-520x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-530x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-620x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-630x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0752-8303-8000-0002
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0762-340x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (excl.)

Vendor	WAGO
Product	0751-9x01
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0750-811x-xxxx-xxxx
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0750-821x-xxx-xxx
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-420x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-430x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-520x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-530x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-620x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-630x-8000-000x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0752-8303-8000-0002
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

Vendor	WAGO
Product	0762-340x
Versions	Default: unaffected affected from 1.0.0 to 4.8.9 (70) (excl.)

References

https://www.certvde.com/en/advisories/VDE-2025-102/

Problem Types

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE