CVE-2021-4459 json
SMA: Directory Traversal in Sunny Boy <3.10.27.R
published last yr. modified 4mo ago also EUVD-2021-34684
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- SMA Boy 3.0 3.10.27.R
- SMA Boy 3.6 3.10.27.R
- SMA Boy 4.0 3.10.27.R
- SMA Boy 5.0 3.10.27.R
- SMA Boy 6.0 3.10.27.R
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- SMA Boy 3.0
- SMA Boy 3.6
- SMA Boy 4.0
- SMA Boy 5.0
- SMA Boy 6.0
Classification
- Weakness
-
- CWE-23 Relative Path Traversal
References
Sources
- CVE List CVE-2021-4459
- NVD CVE-2021-4459
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