CVE-2021-4459

SMA: Directory Traversal in Sunny Boy <3.10.27.R

State: Published
Severity: 6.5 Medium
Published: Aug 27, 2025
Updated: Aug 27, 2025
Reserved: Jul 18, 2025

Description

An authorized remote attacker can access files and directories outside the intended web root, potentially exposing sensitive system information of the affected Sunny Boy devices.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	CERTVDE

Weaknesses

CWE-23 Relative Path Traversal

Affected Products

Product	Versions
Boy 3.0SMA	0.0.0 to before 3.10.27.RAffected
Boy 3.6SMA	0.0.0 to before 3.10.27.RAffected
Boy 4.0SMA	0.0.0 to before 3.10.27.RAffected
Boy 5.0SMA	0.0.0 to before 3.10.27.RAffected
Boy 6.0SMA	0.0.0 to before 3.10.27.RAffected

References

https://certvde.com/en/advisories/VDE-2025-066

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