Cyber Resilience

CVE-2024-47273

Path Traversal in Synology Hyper Backup ≤ 4.1.2-4036

Published
03 June 2026
Modified
22 July 2026
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
EPSS Score 0.0028 20th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2024-47273 is a medium-severity Path Traversal (CWE-22) vulnerability in Synology Hyper Backup. Its CVSS base score is 4.3 (Medium).

Operationally, ranked at the 20th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in Backup Task functionality in Synology Hyper Backup before 4.1.2-4036 allows remote authenticated users to write specific files via unspecified vectors.

CWE(s)

Related Threats

CVEs Like This One

CVE-2024-47263Same product: Synology Hyper Backup
CVE-2025-29846Same product class: NAS / storage appliance
CVE-2025-29843Same product class: NAS / storage appliance
CVE-2023-47803Same product class: NAS / storage appliance
CVE-2024-47266Same product class: NAS / storage appliance
CVE-2025-54160Same product class: NAS / storage appliance
CVE-2024-47264Same product class: NAS / storage appliance
CVE-2025-29844Same product class: NAS / storage appliance
CVE-2024-47267Same product class: NAS / storage appliance
CVE-2024-11398Same product class: NAS / storage appliance

Affected Assets

synology
hyper backup
≤ 4.1.2-4036

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-02 partial match
prevents

Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.

PR.AA-05 none match
prevents

PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development catches path traversal via static/dynamic analysis.

prevents

Secure SDLC mandates input validation and path sanitization that directly prevent path traversal.

prevents

Application security requirements include rules for safe file handling and canonicalization.

prevents

Secure architecture principles require least-privilege file access and directory isolation.

prevents

Secure coding standards explicitly forbid unsafe path construction and mandate safe APIs.

mitigates

Information access restriction limits which files an application may read or write.

References