CVE-2023-35699

Sensitive information disclosure via cleartext SD-card storage

Published Jul 10, 2023 · Updated Jun 1, 2026

Cleartext storage in SICK AG ICR890-4 firmware before 2.5.0 allows physically proximate attackers to read sensitive data from the SD card. The firmware writes sensitive information to removable SD-card storage without encryption, leaving the data readable when the card is accessed. Physical access to the device or its SD card is required, and the reported consequence is confidentiality loss without data modification or service interruption.

CVSS severity5.3
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext storage in SICK AG ICR890-4 firmware before 2.5.0 allows physically proximate attackers to read sensitive data from the SD card. The firmware writes sensitive information to removable SD-card storage without encryption, leaving the data readable when the card is accessed. Physical access to the device or its SD card is required, and the reported consequence is confidentiality loss without data modification or service interruption.

The record

CVE
CVE-2023-35699
Published
Jul 10, 2023
Updated
Jun 1, 2026
Vendor
SICK AG
Product
ICR890-4
Classifications
CWE-313, CWE-312, T1005
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 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=0 <2.5.0

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

SICK AG · ICR890-4version=0 <2.5.0

Published CVSS scores

5.3SICK AGCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-313Cleartext Storage in a File or on Disk
CWE-312Cleartext Storage of Sensitive Information
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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