Vulnerability · Published Aug 27, 2025 · Assigned by CERTVDE
CVE-2021-4459SMA: Directory Traversal in Sunny Boy <3.10.27.R
Medium 6.5
In plain English
A medium-severity security flaw in Boy 3.0 from SMA. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.7%top 47.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-23 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N