CVE-2022-42893Network attack vector

Unauthenticated arbitrary file write via web service

Published Nov 17, 2022 · Updated Apr 30, 2025

Improper file-write access control in syngo Dynamics before VA40G HF01 allows remote attackers to write data via an application-server web service. A web-service operation accepts an externally controlled file path without enforcing write boundaries, placing attacker-supplied data in any folder writable by the website application-pool account. No authentication or user interaction is required, but the service is intended only for trusted internal nodes and the Internet-facing Web Portal is unaffected.

CVSS severity7.5
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper file-write access control in syngo Dynamics before VA40G HF01 allows remote attackers to write data via an application-server web service. A web-service operation accepts an externally controlled file path without enforcing write boundaries, placing attacker-supplied data in any folder writable by the website application-pool account. No authentication or user interaction is required, but the service is intended only for trusted internal nodes and the Internet-facing Web Portal is unaffected.

The record

CVE
CVE-2022-42893
Published
Nov 17, 2022
Updated
Apr 30, 2025
Vendor
Siemens Healthineers AG
Product
syngo Dynamics
Classifications
CWE-610, CWE-73, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record 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=All versions < VA40G HF01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens Healthineers AG · syngo Dynamicsversion=All versions < VA40G HF01

Published CVSS scores

9.1Siemens HealthineersCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-610Externally Controlled Reference to a Resource in Another Sphere
CWE-73External Control of File Name or Path
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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