CVE-2022-22685Network attack vector

Authenticated file deletion via path traversal

Published Jul 28, 2022 · Updated Sep 17, 2024

Path traversal in the webapi component of Synology WebDAV Server before 2.4.0-0062 allows remote authenticated users to delete arbitrary files. Synology identifies the webapi component but has not published the affected endpoint or how supplied paths escape the intended directory. Exploitation requires an authenticated WebDAV account and permits file deletion, with no reported ability to read file contents or execute code.

CVSS severity8.7
High
EPSS probability1.22%
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 the webapi component of Synology WebDAV Server before 2.4.0-0062 allows remote authenticated users to delete arbitrary files. Synology identifies the webapi component but has not published the affected endpoint or how supplied paths escape the intended directory. Exploitation requires an authenticated WebDAV account and permits file deletion, with no reported ability to read file contents or execute code.

The record

CVE
CVE-2022-22685
Published
Jul 28, 2022
Updated
Sep 17, 2024
Vendor
Synology
Product
WebDAV Server
Classifications
CWE-22, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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=unspecified <2.4.0-0062

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Synology · WebDAV Serverversion=unspecified <2.4.0-0062

Published CVSS scores

8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
8.7Synology Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

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')
T1485Data Destruction

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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