CVE-2022-27579

Code execution via unsafe project-file deserialization

Published Jul 19, 2022 · Updated Aug 3, 2024

Deserialization in SICK AG Flexi Soft Designer 1.9.4 SP1 and earlier allows attackers to execute code through crafted project files. A .NET framework class deserializes project-file data without proper validation, allowing embedded object data to trigger code execution. A local user must manually open or import the file, and execution inherits that user's privileges.

CVSS severity8.6
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in SICK AG Flexi Soft Designer 1.9.4 SP1 and earlier allows attackers to execute code through crafted project files. A .NET framework class deserializes project-file data without proper validation, allowing embedded object data to trigger code execution. A local user must manually open or import the file, and execution inherits that user's privileges.

The record

CVE
CVE-2022-27579
Published
Jul 19, 2022
Updated
Aug 3, 2024
Vendor
SICK AG
Product
Flexi Soft Designer
Classifications
CWE-502, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=All versions up to and including 1.9.4 SP1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

SICK AG · Flexi Soft Designerversion=All versions up to and including 1.9.4 SP1

Published CVSS scores

8.6SICK AGCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

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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