CVE-2021-4459

SMA: Directory Traversal in Sunny Boy <3.10.27.R

Published Aug 27, 2025 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-34684 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.
History
Type Values Removed Values Added
First Time appeared Sma
Sma sunny Boy
Sma sunny Boy 1.5
Sma sunny Boy 2.5
Sma sunny Boy 3.0
Sma sunny Boy 3.6
Sma sunny Boy 4.0
Sma sunny Boy 5.0
Sma sunny Boy 6.0
Vendors & Products Sma
Sma sunny Boy
Sma sunny Boy 1.5
Sma sunny Boy 2.5
Sma sunny Boy 3.0
Sma sunny Boy 3.6
Sma sunny Boy 4.0
Sma sunny Boy 5.0
Sma sunny Boy 6.0
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title SMA: Directory Traversal in Sunny Boy <3.10.27.R
Weaknesses CWE-23
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERTVDE
Published
Updated
Aug 27, 2025, 4:18 PM
Reserved
Jul 18, 2025, 5:04 AM
Status
Deferred
Published
Aug 27, 2025, 8:15 AM
Modified
Jun 17, 2026, 4:19 AM