CVE-2021-44124
CVE-2021-44124 is a high-severity vulnerability in Hiby R3 Pro Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (77th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Hiby R3 Pro Firmware
- Published:
- Last modified:
Description
Hiby Music Hiby OS R3 Pro 1.5 and 1.6 is vulnerable to Directory Traversal. The HTTP Server does not have enough input data sanitization when shown data from SD Card, an attacker can navigate through the device's File System over HTTP.
Frequently asked questions
- What is CVE-2021-44124?
- Hiby Music Hiby OS R3 Pro 1.5 and 1.6 is vulnerable to Directory Traversal. The HTTP Server does not have enough input data sanitization when shown data from SD Card, an attacker can navigate through the device's File System over HTTP.
- How severe is CVE-2021-44124?
- CVE-2021-44124 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2021-44124 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-44124?
- CVE-2021-44124 primarily affects Hiby R3 Pro Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-44124?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-44124 published?
- CVE-2021-44124 was published on 2022-03-28 and last updated on 2026-06-17.
References
- https://github.com/feric/Findings/tree/main/Hiby/Web%20Server/Path%20Traversal
- https://github.com/vext01/hiby-issues/issues/9#issuecomment-907891626
Affected products (2)
- cpe:2.3:o:hiby:r3_pro_firmware:1.5:*:*:*:*:*:*:*
- cpe:2.3:o:hiby:r3_pro_firmware:1.6:*:*:*:*:*:*:*
Other CWE-22 (Path Traversal) vulnerabilities
- CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
- CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
- CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
- CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
- CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
- CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…