CVE-2023-36748

Traffic interception and modification via default weak ciphers

Published Jul 11, 2023 · Updated Nov 27, 2024

Inadequate encryption in Siemens RUGGEDCOM ROX devices before 2.16.0 allows man-in-the-middle attackers to read and alter network data. The devices offer weak ciphers by default, permitting intercepted sessions to use encryption that does not adequately protect traffic. Exploitation requires an adjacent network position and user interaction, and it can expose, modify, or disrupt data exchanged with the device.

CVSS severity5.9
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inadequate encryption in Siemens RUGGEDCOM ROX devices before 2.16.0 allows man-in-the-middle attackers to read and alter network data. The devices offer weak ciphers by default, permitting intercepted sessions to use encryption that does not adequately protect traffic. Exploitation requires an adjacent network position and user interaction, and it can expose, modify, or disrupt data exchanged with the device.

The record

CVE
CVE-2023-36748
Published
Jul 11, 2023
Updated
Nov 27, 2024
Vendor
Siemens
Product
RUGGEDCOM ROX RX1500
Classifications
CWE-326, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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 < V2.16.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Siemens · RUGGEDCOM ROX RX1500version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX5000version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1511version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX MX5000REversion=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1536version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1512version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1510version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1524version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1501version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX RX1400version=All versions < V2.16.0
Siemens · RUGGEDCOM ROX MX5000version=All versions < V2.16.0

Published CVSS scores

6.8NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
5.9Siemens AGCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-326Inadequate Encryption Strength
T1557Adversary-in-the-Middle

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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