CVE-2024-47273Network attack vector

Authenticated file write via Backup Task traversal

Published Jun 3, 2026 · Updated Jun 3, 2026

Path traversal in Synology Hyper Backup before 4.1.2-4036 allows remote authenticated users to write specific files through Backup Tasks. Backup Task processing does not keep a pathname within the intended restricted directory; Synology has not disclosed the affected handler or input. A valid DSM account and network access are required, and no ability to read files or interrupt the service is reported.

CVSS severity4.3
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Synology Hyper Backup before 4.1.2-4036 allows remote authenticated users to write specific files through Backup Tasks. Backup Task processing does not keep a pathname within the intended restricted directory; Synology has not disclosed the affected handler or input. A valid DSM account and network access are required, and no ability to read files or interrupt the service is reported.

The record

CVE
CVE-2024-47273
Published
Jun 3, 2026
Updated
Jun 3, 2026
Vendor
Synology
Product
Hyper Backup
Classifications
CWE-22, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <4.1.2-4036

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Synology · Hyper Backupversion=* <4.1.2-4036

Published CVSS scores

4.3Synology Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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